:root {
    --bg: #0a0a0c;
    --bg-soft: #101014;
    --surface: rgba(255,255,255,.03);
    --border: rgba(255,255,255,.09);
    --text: #f4f4f5;
    --muted: #a1a1aa;
    --gold: #f5c518;
    --gold-light: #f9d976;
    --grad: linear-gradient(135deg, #f9d976, #f5c518 50%, #c9930a);
    --mono: "JetBrains Mono", "Fira Code", "Cascadia Code", Consolas, "Courier New", monospace;
    --radius: 18px;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; color-scheme: dark; }
  body {
    background: var(--bg); color: var(--text); line-height: 1.65; overflow-x: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  }
  ::selection { background: rgba(245,197,24,.35); color: #fff; }
  a { color: inherit; }
  svg.px { shape-rendering: crispEdges; image-rendering: pixelated; }

  .bg-decor { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
  .blob { position: absolute; border-radius: 50%; filter: blur(130px); }
  .blob-1 { width: 620px; height: 620px; background: #3f3f46; opacity: .18; top: -220px; left: -160px; }
  .blob-2 { width: 520px; height: 520px; background: #f5c518; opacity: .05; top: 22%; right: -180px; }
  .blob-3 { width: 480px; height: 480px; background: #27272a; opacity: .28; bottom: -120px; left: 28%; }
  .bg-decor::after {
    content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 72%);
    mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 72%);
  }

  .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
  .section { padding: 100px 0; scroll-margin-top: 80px; }
  .section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
  .section-tag {
    display: inline-block; font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: 1px;
    color: var(--muted); background: var(--surface);
    border: 1px solid var(--border); border-radius: 999px; padding: 5px 16px; margin-bottom: 18px;
  }
  .section-tag i { font-style: normal; color: var(--gold); }
  .section-head h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: -.02em; line-height: 1.25; }
  .section-head p { color: var(--muted); margin-top: 14px; font-size: 16px; }
  .gradient-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 28px; border-radius: 12px;
    font-size: 15px; font-weight: 700; text-decoration: none; cursor: pointer; border: none;
    transition: transform .2s, box-shadow .2s, background .2s, border-color .2s, color .2s;
  }
  .btn-primary { background: var(--grad); color: #0a0a0c; box-shadow: 0 8px 26px rgba(245,197,24,.25); }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(245,197,24,.4); }
  .btn-ghost { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
  .btn-ghost:hover { border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.06); }
  .btn-outline-gold { background: transparent; color: var(--gold-light); border: 1px solid rgba(245,197,24,.5); }
  .btn-outline-gold:hover { background: rgba(245,197,24,.1); border-color: rgba(245,197,24,.8); }
  .btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 10px; }
  kbd {
    background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.18); border-bottom-width: 2px;
    border-radius: 6px; padding: 2px 8px; font-size: 12px; font-family: var(--mono); color: #e4e4e7;
  }

  .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
  .reveal.visible { opacity: 1; transform: none; }

  nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 16px 0; transition: .3s; }
  nav.scrolled { background: rgba(10,10,12,.85); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); padding: 10px 0; }
  .nav-inner { display: flex; align-items: center; justify-content: space-between; }
  .logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; text-decoration: none; letter-spacing: -.02em; }
  .logo-mark { width: 34px; height: 34px; border-radius: 10px; background: var(--grad); display: grid; place-items: center; box-shadow: 0 4px 14px rgba(245,197,24,.35); }
  .nav-links { display: flex; gap: 30px; list-style: none; }
  .nav-links a { color: var(--muted); text-decoration: none; font-size: 15px; transition: color .2s; }
  .nav-links a:hover { color: #fff; }
  .burger { display: none; background: none; border: 1px solid var(--border); color: var(--text); border-radius: 8px; width: 38px; height: 38px; font-size: 18px; cursor: pointer; }

  .hero { padding: 170px 0 90px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 13px; color: var(--muted);
    background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 7px 16px; margin-bottom: 26px;
  }
  .hero-badge b { color: #fff; font-weight: 700; }
  .hero h1 { font-size: clamp(38px, 5.2vw, 62px); line-height: 1.14; font-weight: 800; letter-spacing: -.03em; }
  .hero-desc { color: var(--muted); font-size: 17px; margin: 22px 0 34px; max-width: 520px; }
  .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
  .hero-note { margin-top: 22px; font-size: 13px; color: var(--muted); display: flex; gap: 16px; flex-wrap: wrap; }
  .hero-note span::before { content: "✓ "; color: #e4e4e7; font-weight: 700; }
  .hero-terminal {
    margin-top: 26px; display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap;
    font-family: var(--mono); font-size: 13px; color: var(--muted);
    background: rgba(255,255,255,.03); border: 1px solid var(--border); border-radius: 10px; padding: 10px 18px;
  }
  .t-prompt { color: var(--gold); font-weight: 700; }
  .t-cmd { color: var(--text); }
  .t-out { color: #e4e4e7; }

  .hero-visual { position: relative; }
  .mockup {
    border-radius: 18px; border: 1px solid rgba(255,255,255,.12); overflow: hidden;
    background: rgba(16,16,20,.92); box-shadow: 0 30px 80px rgba(0,0,0,.6);
  }
  .mockup-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
  .dot { width: 11px; height: 11px; border-radius: 50%; }
  .dot.r { background: #f87171; } .dot.y { background: #fbbf24; } .dot.g { background: #34d399; }
  .urlbar {
    flex: 1; margin-left: 10px; background: rgba(255,255,255,.05); border: 1px solid var(--border);
    border-radius: 8px; padding: 5px 14px; font-family: var(--mono); font-size: 12px; color: var(--muted);
  }
  .mockup-body {
    position: relative; height: 300px;
    background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px); background-size: 22px 22px;
  }
  .mockup-body svg { width: 100%; height: 100%; display: block; }
  .gesture-path {
    fill: none; stroke: url(#gStroke); stroke-width: 5; stroke-linecap: round;
    stroke-dasharray: 100; stroke-dashoffset: 100;
    animation: draw 6s ease-in-out infinite;
    filter: drop-shadow(0 0 9px rgba(245,197,24,.8));
  }
  @keyframes draw {
    0% { stroke-dashoffset: 100; opacity: 0; }
    6% { opacity: 1; }
    42% { stroke-dashoffset: 0; }
    78% { stroke-dashoffset: 0; opacity: 1; }
    90%, 100% { stroke-dashoffset: 0; opacity: 0; }
  }
  .cursor-g { animation: cursorFade 6s infinite; }
  @keyframes cursorFade { 0%,3% { opacity: 0; } 8%,84% { opacity: 1; } 92%,100% { opacity: 0; } }
  .cursor-ring { fill: rgba(245,197,24,.22); }
  .cursor-dot { fill: #fff; filter: drop-shadow(0 0 7px rgba(245,197,24,.95)); }
  .action-chip {
    position: absolute; right: 22px; bottom: 22px; display: flex; align-items: center; gap: 8px;
    background: rgba(10,10,12,.92); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,.16);
    border-radius: 12px; padding: 10px 16px; font-size: 13.5px; font-weight: 600;
    box-shadow: 0 10px 30px rgba(0,0,0,.5); animation: chipPop 6s ease infinite;
  }
  @keyframes chipPop {
    0%, 44% { opacity: 0; transform: translateY(12px) scale(.92); }
    52% { opacity: 1; transform: translateY(0) scale(1.05); }
    57% { transform: scale(1); }
    78% { opacity: 1; }
    88%, 100% { opacity: 0; transform: translateY(0); }
  }
  .float-card {
    position: absolute; background: rgba(10,10,12,.9); backdrop-filter: blur(8px);
    border: 1px solid var(--border); border-radius: 12px; padding: 10px 18px;
    font-family: var(--mono); font-size: 13px; font-weight: 600; color: #e4e4e7;
    box-shadow: 0 12px 32px rgba(0,0,0,.5); animation: floaty 5s ease-in-out infinite;
  }
  .fc-1 { top: -20px; right: -12px; }
  .fc-2 { bottom: -18px; left: -14px; animation-delay: -2.5s; }
  .fc-mouse { width: 26px; height: auto; vertical-align: -4px; margin-right: 4px; }
  @keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

  .stats { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: rgba(255,255,255,.015); }
  .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 44px 0; text-align: center; }
  .stat-num { font-family: var(--mono); font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; letter-spacing: -.02em; color: #fff; }
  .stat-label { color: var(--muted); font-size: 14px; margin-top: 4px; }

  .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .feature-card {
    position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 30px 26px; transition: transform .25s, border-color .25s, box-shadow .25s;
  }
  .feature-card:hover { transform: translateY(-5px); border-color: rgba(245,197,24,.35); box-shadow: 0 18px 44px rgba(0,0,0,.5); }
  .feature-tag {
    position: absolute; top: 18px; right: 20px; font-family: var(--mono);
    font-size: 10px; letter-spacing: 1.5px; color: var(--muted); opacity: .65;
  }
  .feature-icon {
    width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; font-size: 24px; margin-bottom: 18px;
    background: rgba(255,255,255,.04); border: 1px solid var(--border);
  }
  .feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
  .feature-card p { color: var(--muted); font-size: 14.5px; }
  .feature-card code {
    font-family: var(--mono); font-size: 12.5px; color: var(--gold-light);
    background: rgba(245,197,24,.08); border: 1px solid rgba(245,197,24,.22);
    padding: 1px 7px; border-radius: 6px;
  }

  .demo-wrap { display: grid; grid-template-columns: 1.35fr 1fr; gap: 24px; align-items: start; }
  .canvas-card {
    position: relative; height: 460px; border-radius: 20px; border: 1px solid var(--border); overflow: hidden;
    background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
    background-size: 20px 20px; background-color: var(--bg-soft);
  }
  /* width/height also set in JS to CSS px so bitmap (×dpr) never drives layout size */
  #gestureCanvas {
    position: absolute; left: 0; top: 0; width: 100%; height: 100%;
    display: block; cursor: crosshair; touch-action: none;
  }
  .canvas-hint {
    position: absolute; inset: 0; display: grid; place-items: center; text-align: center; padding: 0 24px;
    color: var(--muted); font-size: 16px; pointer-events: none; transition: opacity .3s;
  }
  .canvas-hint.hidden { opacity: 0; }
  .canvas-clear { position: absolute; top: 14px; right: 14px; z-index: 2; }
  .canvas-status {
    position: absolute; left: 18px; right: 18px; bottom: 12px; display: flex; justify-content: space-between;
    font-family: var(--mono); font-size: 12px; color: var(--muted); pointer-events: none;
  }
  .canvas-status .led { color: var(--gold); }
  .demo-side { display: flex; flex-direction: column; gap: 18px; }
  .result-card {
    border: 1px dashed rgba(255,255,255,.16); border-radius: var(--radius); min-height: 210px;
    display: grid; place-items: center; padding: 24px; text-align: center; background: var(--surface);
  }
  .result-empty { color: var(--muted); font-size: 14.5px; }
  .result-inner { animation: popIn .45s cubic-bezier(.2,1.4,.4,1); }
  @keyframes popIn { from { opacity: 0; transform: scale(.82); } to { opacity: 1; transform: scale(1); } }
  .result-badge { display: inline-block; font-family: var(--mono); font-size: 12px; padding: 3px 12px; border-radius: 999px; margin-bottom: 10px; }
  .result-badge.ok { background: rgba(245,197,24,.12); color: var(--gold); border: 1px solid rgba(245,197,24,.4); }
  .result-badge.no { background: rgba(251,146,60,.1); color: #fb923c; border: 1px solid rgba(251,146,60,.35); }
  .result-icon { font-size: 42px; line-height: 1.2; }
  .result-name { font-size: 22px; font-weight: 700; margin: 6px 0 4px; }
  .result-drawn { color: var(--gold-light); font-family: var(--mono); font-size: 15px; letter-spacing: 3px; }
  .result-shortcut { margin-top: 12px; font-size: 13px; color: var(--muted); }
  .result-tip { margin-top: 10px; font-size: 13px; color: var(--muted); }
  .gesture-list { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
  .gesture-list-title { font-family: var(--mono); font-size: 13px; margin-bottom: 12px; color: var(--muted); }
  .chips { display: flex; flex-wrap: wrap; gap: 9px; }
  .chip {
    display: inline-flex; align-items: center; gap: 8px; padding: 8px 15px; border-radius: 999px;
    background: rgba(255,255,255,.03); border: 1px solid var(--border); color: var(--muted);
    font-size: 13.5px; cursor: pointer; transition: .2s; font-family: inherit;
  }
  .chip:hover { color: #fff; border-color: rgba(255,255,255,.3); }
  .chip.active { color: #0a0a0c; background: var(--grad); border-color: transparent; font-weight: 600; box-shadow: 0 4px 16px rgba(245,197,24,.35); }
  .chip-shape { font-weight: 800; color: var(--gold); }
  .chip.active .chip-shape { color: #0a0a0c; }

  .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 26px; text-align: center; transition: border-color .25s; }
  .step:hover { border-color: rgba(255,255,255,.22); }
  .step-num {
    width: 46px; height: 46px; margin: 0 auto 18px; border-radius: 50%; display: grid; place-items: center;
    background: rgba(255,255,255,.05); border: 1px solid var(--border);
    font-family: var(--mono); font-weight: 800; font-size: 18px; color: #fff;
  }
  .step h3 { font-size: 17px; margin-bottom: 8px; }
  .step p { color: var(--muted); font-size: 14.5px; }

  .dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .dl-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 24px 26px; display: flex; flex-direction: column; gap: 14px; transition: border-color .25s;
  }
  .dl-card:hover { border-color: rgba(255,255,255,.22); }
  .dl-main {
    grid-column: 1 / -1; flex-direction: row; align-items: center; flex-wrap: wrap;
    border-color: rgba(245,197,24,.3);
  }
  .dl-main:hover { border-color: rgba(245,197,24,.5); }
  .dl-icon {
    font-size: 26px; width: 54px; height: 54px; display: grid; place-items: center; flex-shrink: 0;
    background: rgba(255,255,255,.04); border: 1px solid var(--border); border-radius: 14px;
  }
  .dl-info { flex: 1; min-width: 230px; }
  .dl-name { font-weight: 700; font-size: 16.5px; }
  .dl-flag {
    font-family: var(--mono); font-size: 10.5px; padding: 2px 9px; border-radius: 999px;
    background: rgba(52,211,153,.12); color: #34d399; border: 1px solid rgba(52,211,153,.3); vertical-align: 2px; margin-left: 6px;
  }
  .dl-flag.beta { background: rgba(251,146,60,.1); color: #fb923c; border-color: rgba(251,146,60,.3); }
  .dl-meta { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-top: 4px; }
  .dl-sub {
    flex-basis: 100%; display: flex; gap: 18px; flex-wrap: wrap; align-items: center;
    border-top: 1px dashed rgba(255,255,255,.12); padding-top: 14px;
  }
  .dl-cmd { display: flex; align-items: center; gap: 10px; }
  .dl-cmd code {
    font-family: var(--mono); font-size: 12.5px; color: #e4e4e7;
    background: rgba(255,255,255,.04); border: 1px solid var(--border); padding: 7px 13px; border-radius: 8px;
  }
  .copy-btn {
    font-family: var(--mono); font-size: 11.5px; color: var(--muted); background: none;
    border: 1px solid var(--border); border-radius: 8px; padding: 7px 13px; cursor: pointer; transition: .2s;
  }
  .copy-btn:hover { color: var(--gold); border-color: rgba(245,197,24,.45); }
  .copy-btn.ok { color: #34d399; border-color: rgba(52,211,153,.45); }
  .dl-hash { font-family: var(--mono); font-size: 11px; color: var(--muted); letter-spacing: .4px; }
  .dl-card .btn { justify-content: center; }
  .dl-changelog {
    margin-top: 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
    padding: 16px 22px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
    font-family: var(--mono); font-size: 13px;
  }
  .dl-changelog-title { font-weight: 800; color: #fff; }
  .cl-add { color: #34d399; } .cl-mod { color: var(--gold); } .cl-fix { color: #f87171; }
  .dl-more { margin-left: auto; color: var(--muted); text-decoration: none; }
  .dl-more:hover { color: var(--gold); }

  /* ===== 会员方案 ===== */
  .pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
  .price-card {
    position: relative; background: var(--surface); border: 1px solid var(--border);
    border-radius: 22px; padding: 32px 28px; display: flex; flex-direction: column;
  }
  .price-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; }
  .pet { flex-shrink: 0; height: auto; }
  /* Match running chase prey (.prey svg = 40×40) */
  .pet-free { width: 40px; height: 40px; }
  .pet-sub { width: 52px; }
  .floaty { animation: floaty 5s ease-in-out infinite; }
  /* 走路腿帧 */
  .leg-a { animation: legA .42s infinite; }
  .leg-b { animation: legB .42s infinite; }
  @keyframes legA { 0%, 49.99% { opacity: 1; } 50%, 100% { opacity: 0; } }
  @keyframes legB { 0%, 49.99% { opacity: 0; } 50%, 100% { opacity: 1; } }
  /* 眨眼：睁眼层 / 闭眼层叠放，靠 opacity 切换 */
  .ey-open { animation: blinkOpen 4s infinite; }
  .ey-closed { opacity: 0; animation: blinkClosed 4s infinite; }
  @keyframes blinkOpen { 0%, 90%, 100% { opacity: 1; } 93%, 97% { opacity: 0; } }
  @keyframes blinkClosed { 0%, 90%, 100% { opacity: 0; } 93%, 97% { opacity: 1; } }
  /* 追球猫：伸爪帧默认隐藏，pawing 时切换 */
  .paw-leg { opacity: 0; }
  .chaser.pawing .walk-legs { opacity: 0 !important; animation: none !important; }
  .chaser.pawing .paw-leg { opacity: 1 !important; }
  .chaser svg { transform-origin: 50% 100%; }
  @media (prefers-reduced-motion: reduce) {
    .leg-a, .leg-b, .floaty { animation: none; }
    .leg-b { opacity: 0; }
    .ey-open { animation: none; }
    .ey-closed { opacity: 0 !important; animation: none; }
    .chaser svg { transform: none !important; }
  }
  .plan-code { font-family: var(--mono); font-size: 11px; letter-spacing: 2px; color: var(--muted); margin-bottom: 10px; }
  .price-name { font-size: 17px; font-weight: 700; }
  .price-desc { color: var(--muted); font-size: 13px; margin-top: 2px; }
  .price-num { font-family: var(--mono); font-size: 40px; font-weight: 800; letter-spacing: -.03em; margin: 16px 0 2px; }
  .price-num small { font-size: 18px; font-weight: 600; margin-right: 2px; }
  .price-unit { font-size: 15px; color: var(--muted); font-weight: 600; margin-left: 2px; letter-spacing: 0; }
  .price-once { color: var(--muted); font-size: 12.5px; margin-bottom: 20px; }
  .price-features { list-style: none; margin-bottom: 26px; flex: 1; }
  .price-features li { padding: 6px 0; font-size: 14.5px; color: #d4d4d8; display: flex; gap: 10px; }
  .price-features li::before { content: "✓"; color: #e4e4e7; font-weight: 800; }
  .price-card .btn { justify-content: center; }
  .pricing-note { text-align: center; color: var(--muted); font-size: 13.5px; margin-top: 34px; }
  .pricing-note a { color: var(--muted); text-decoration: none; border-bottom: 1px dashed rgba(255,255,255,.25); }
  .pricing-note a:hover { color: var(--gold); border-color: rgba(245,197,24,.5); }

  /* ===== 成就排行榜（独立页 leaderboard.html） ===== */
  .page-lb .lb-page { padding: 120px 0 80px; min-height: 70vh; }
  .lb-page-head { text-align: center; max-width: 640px; margin: 0 auto 40px; }
  .lb-page-head h1 {
    font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: -.02em; line-height: 1.25; margin-top: 14px;
  }
  .lb-page-head p { color: var(--muted); margin-top: 14px; font-size: 16px; }
  .lb-back { margin-top: 18px !important; font-size: 14px !important; }
  .lb-back a { color: var(--muted); text-decoration: none; border-bottom: 1px dashed rgba(255,255,255,.25); }
  .lb-back a:hover { color: var(--gold); border-color: rgba(245,197,24,.5); }
  .nav-links a[aria-current="page"] { color: #fff; }

  .lb-toolbar {
    display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 0 auto 28px; max-width: 900px;
  }
  .lb-panel {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 22px 24px 20px; max-width: 960px; margin: 0 auto;
  }
  .lb-meta {
    font-family: var(--mono); font-size: 12.5px; color: var(--muted); margin-bottom: 14px;
  }
  .lb-meta b { color: var(--gold-light); font-weight: 600; }
  .lb-table-wrap { overflow-x: auto; }
  .lb-table { width: 100%; border-collapse: collapse; font-size: 14px; }
  .lb-table th {
    text-align: left; color: var(--muted); font-size: 11.5px; font-weight: 600;
    padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap;
  }
  .lb-table td {
    padding: 11px 10px; border-bottom: 1px solid rgba(255,255,255,.05); white-space: nowrap;
  }
  .lb-table tbody tr:hover { background: rgba(255,255,255,.03); }
  .lb-table .lb-rank {
    font-family: var(--mono); font-weight: 800; color: var(--muted); min-width: 2.2em;
  }
  .lb-table tr:nth-child(1) .lb-rank { color: var(--gold); }
  .lb-table tr:nth-child(2) .lb-rank { color: #e4e4e7; }
  .lb-table tr:nth-child(3) .lb-rank { color: #d4a574; }
  .lb-handle { font-weight: 700; }
  .lb-score {
    font-family: var(--mono); font-weight: 700; color: var(--gold-light);
  }
  .lb-sub { color: var(--muted); font-family: var(--mono); font-size: 12.5px; }
  .lb-empty { text-align: center; color: var(--muted); padding: 36px 12px !important; }
  .lb-note {
    margin-top: 16px; font-size: 12.5px; color: var(--muted); line-height: 1.55;
  }
  .lb-note code {
    font-family: var(--mono); font-size: 11.5px; background: rgba(255,255,255,.04);
    border: 1px solid var(--border); padding: 2px 7px; border-radius: 6px;
  }
  @media (max-width: 720px) {
    .lb-table .lb-sub { display: none; }
    .lb-table th.lb-sub { display: none; }
  }

  .sub-card {
    border-color: rgba(245,197,24,.35);
    background: linear-gradient(165deg, rgba(245,197,24,.06), rgba(255,255,255,.03) 45%);
  }
  .sub-card:hover { border-color: rgba(245,197,24,.6); }
  .sub-card .price-features li::before { color: var(--gold-light); }
  .sub-since {
    font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.5px; color: var(--muted);
    border-top: 1px dashed rgba(255,255,255,.14); padding-top: 12px; margin-bottom: 14px; text-align: center;
  }

  .member-card {
    border: 1px solid transparent;
    background: linear-gradient(#131316, #0e0e11) padding-box, var(--grad) border-box;
    transform: scale(1.02); box-shadow: 0 24px 60px rgba(0,0,0,.55), 0 0 46px rgba(245,197,24,.08);
  }
  .member-card::before {
    content: ""; position: absolute; top: -70px; left: 50%; transform: translateX(-50%);
    width: 320px; height: 220px; pointer-events: none;
    background: radial-gradient(ellipse, rgba(245,197,24,.13), transparent 70%);
  }
  .member-card::after {
    content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
    background: linear-gradient(115deg, transparent 42%, rgba(249,217,118,.07) 50%, transparent 58%);
    background-size: 220% 100%; background-repeat: no-repeat;
    animation: sheen 7s ease-in-out infinite;
  }
  @keyframes sheen { 0%, 15% { background-position: 130% 0; } 55%, 100% { background-position: -30% 0; } }
  .price-badge {
    position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
    background: var(--grad); color: #0a0a0c; font-size: 12px; font-weight: 800;
    padding: 4px 16px; border-radius: 999px; white-space: nowrap; box-shadow: 0 4px 14px rgba(245,197,24,.35);
  }
  .member-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
  .member-brand { font-weight: 800; font-size: 15.5px; letter-spacing: .5px; }
  .member-brand b { color: var(--gold); }
  .member-pet { width: 52px; height: auto; }
  .member-top { display: flex; align-items: center; gap: 14px; margin-top: 14px; }
  .card-chip {
    width: 34px; height: 24px; border-radius: 5px; position: relative; flex-shrink: 0;
    background: linear-gradient(135deg, #f9d976, #d4a017 60%, #b8860b);
    box-shadow: inset 0 1px 2px rgba(255,255,255,.55), 0 2px 5px rgba(0,0,0,.5);
  }
  .card-chip::before { content: ""; position: absolute; inset: 4px 6px; border: 1px solid rgba(0,0,0,.42); border-radius: 2px; }
  .card-chip::after { content: ""; position: absolute; left: 6px; right: 6px; top: 50%; height: 1px; background: rgba(0,0,0,.42); }
  .card-number { font-family: var(--mono); font-size: 13.5px; letter-spacing: 2px; color: #e4e4e7; }
  .barcode {
    height: 22px; margin-top: 12px; opacity: .85;
    background:
      repeating-linear-gradient(90deg, #e4e4e7 0 2px, transparent 2px 5px),
      repeating-linear-gradient(90deg, #e4e4e7 0 1px, transparent 1px 9px),
      repeating-linear-gradient(90deg, #e4e4e7 0 3px, transparent 3px 13px);
  }
  .card-id { font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.5px; color: var(--muted); margin-top: 6px; }
  .member-divider { border-top: 1px dashed rgba(255,255,255,.16); margin: 14px 0 2px; }
  .member-card .price-num { margin-top: 8px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .member-card .price-features li::before { color: var(--gold); }

  .faq-list { max-width: 760px; margin: 0 auto; }
  .faq-item { border: 1px solid var(--border); border-radius: 14px; margin-bottom: 12px; background: var(--surface); overflow: hidden; }
  .faq-q {
    width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
    padding: 20px 24px; background: none; border: none; color: var(--text);
    font-size: 16px; font-weight: 600; cursor: pointer; text-align: left; font-family: inherit;
  }
  .faq-icon { font-size: 20px; line-height: 1; color: var(--muted); transition: transform .3s, color .3s; flex-shrink: 0; }
  .faq-item.open .faq-icon { transform: rotate(45deg); color: var(--gold); }
  .faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
  .faq-a p { padding: 0 24px 20px; color: var(--muted); font-size: 14.5px; }

  .cta-band {
    position: relative; overflow: hidden; text-align: center; border-radius: 26px;
    border: 1px solid var(--border); padding: 70px 24px;
    background: linear-gradient(135deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  }
  .cta-band::before {
    content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%;
    background: rgba(245,197,24,.09); filter: blur(120px); top: -280px; left: 50%; transform: translateX(-50%);
  }
  .cta-pets { display: flex; justify-content: center; align-items: flex-end; gap: 22px; margin-bottom: 20px; position: relative; }
  .cta-pet { height: auto; animation: floaty 5s ease-in-out infinite; }
  .cta-pet-1 { width: 38px; }
  .cta-pet-2 { width: 58px; animation-delay: -1.6s; }
  .cta-pet-3 { width: 58px; animation-delay: -3.2s; }
  .cta-band h2 { font-size: clamp(26px, 3.6vw, 38px); font-weight: 800; letter-spacing: -.02em; position: relative; }
  .cta-band p { color: var(--muted); margin: 14px 0 30px; position: relative; }
  .cta-band .btn { position: relative; }

  footer { border-top: 1px solid var(--border); margin-top: 100px; padding: 64px 0 30px; }
  .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 44px; margin-bottom: 48px; }
  .footer-brand p { color: var(--muted); font-size: 14px; margin-top: 14px; max-width: 300px; }
  .footer-pixel-line { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-top: 16px; display: flex; align-items: center; gap: 8px; }
  .footer-mouse { width: 26px; height: auto; }
  .footer-col h4 { font-family: var(--mono); font-size: 13px; font-weight: 700; margin-bottom: 16px; color: var(--muted); letter-spacing: 1px; }
  .footer-col a { display: block; color: var(--muted); text-decoration: none; font-size: 14px; padding: 5px 0; transition: color .2s; }
  .footer-col a:hover { color: #fff; }
  .footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: 13px; font-family: var(--mono); }

  /* ===== 彩蛋：奶牛猫追免费像素鼠 ===== */
  #chaser-fx { position: fixed; inset: 0; z-index: 200; pointer-events: none; overflow: hidden; }
  .chaser, .prey { position: fixed; left: 0; top: 0; transform: translate(-50%, -50%); will-change: left, top; }
  .chaser-dir { transform: scaleX(1); }
  .chaser svg, .prey svg { display: block; }
  .chaser svg { width: 64px; height: auto; filter: drop-shadow(0 5px 7px rgba(0,0,0,.5)); }
  .prey svg { width: 40px; height: 40px; overflow: visible; filter: drop-shadow(0 3px 5px rgba(0,0,0,.45)); image-rendering: pixelated; }
  .prey-spin { transform-origin: 50% 55%; will-change: transform; }
  .chaser-hint {
    position: fixed; left: 18px; bottom: 18px; z-index: 201; pointer-events: none;
    font-family: var(--mono); font-size: 12px; color: var(--muted);
    background: rgba(10,10,12,.82); border: 1px solid var(--border); border-radius: 999px;
    padding: 7px 14px; backdrop-filter: blur(8px); opacity: 0; animation: hintShow 9s ease forwards;
  }
  @keyframes hintShow { 8% { opacity: 1; } 78% { opacity: 1; } 100% { opacity: 0; } }
  @media (prefers-reduced-motion: reduce) { .chaser-hint { animation: none; opacity: .8; } }

  /* ===== 返回顶部：订阅英短蓝猫 → 超人起飞 ===== */
  .back-top {
    position: fixed; right: 18px; bottom: 18px; z-index: 260;
    width: 56px; height: 56px; border-radius: 16px; border: 1px solid var(--border);
    background: rgba(10,10,12,.88); backdrop-filter: blur(12px);
    box-shadow: 0 10px 28px rgba(0,0,0,.45);
    cursor: pointer; padding: 0; display: grid; place-items: center;
    opacity: 0; transform: translateY(12px) scale(.92); pointer-events: none;
    transition: opacity .28s, transform .28s, border-color .2s, box-shadow .2s;
  }
  .back-top.show { opacity: 1; transform: none; pointer-events: auto; }
  .back-top:hover:not(.flying) { border-color: rgba(245,197,24,.45); box-shadow: 0 12px 32px rgba(245,197,24,.18); }
  .back-top:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
  .back-top-stage {
    position: relative; width: 40px; height: 40px;
    display: grid; place-items: center;
  }
  .back-top-cat {
    width: 36px; height: 36px; position: relative; z-index: 2;
    image-rendering: pixelated; filter: drop-shadow(0 2px 3px rgba(0,0,0,.4));
    transition: transform .25s;
  }
  .back-top-cape {
    position: absolute; z-index: 1; left: 50%; top: 10px;
    width: 22px; height: 28px; transform: translateX(-50%);
    opacity: 0; pointer-events: none;
    transform-origin: 50% 0%;
  }
  .back-top-cape svg { width: 100%; height: 100%; display: block; overflow: visible; }
  /* idle label */
  .back-top-tip {
    position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%);
    white-space: nowrap; font-family: var(--mono); font-size: 11px; color: var(--muted);
    background: rgba(10,10,12,.9); border: 1px solid var(--border); border-radius: 999px;
    padding: 4px 10px; opacity: 0; transition: opacity .2s; pointer-events: none;
  }
  .back-top.show:hover:not(.flying) .back-top-tip { opacity: 1; }
  /* Superman flight */
  .back-top.flying {
    pointer-events: none;
    border-color: rgba(245,197,24,.55);
    background: transparent;
    box-shadow: none;
    animation: superFly 1.15s cubic-bezier(.22,.82,.2,1) forwards;
  }
  .back-top.flying .back-top-tip { opacity: 0 !important; }
  .back-top.flying .back-top-cape {
    opacity: 1;
    animation: capeWave .22s ease-in-out infinite alternate;
  }
  .back-top.flying .back-top-cat {
    transform: rotate(-38deg) translate(2px, -2px) scale(1.05);
  }
  .back-top.flying .back-top-stage {
    transform: rotate(-8deg);
  }
  @keyframes capeWave {
    from { transform: translateX(-50%) skewX(-6deg) scaleY(1); }
    to { transform: translateX(-50%) skewX(8deg) scaleY(1.08) translateY(1px); }
  }
  @keyframes superFly {
    0%   { transform: translate(0, 0) scale(1); opacity: 1; }
    12%  { transform: translate(-8px, 6px) scale(1.05); } /* crouch */
    28%  { transform: translate(-18px, -40px) rotate(-12deg) scale(1.12); }
    100% { transform: translate(calc(-50vw + 40px), calc(-100vh + 90px)) rotate(-28deg) scale(.85); opacity: .15; }
  }
  @media (prefers-reduced-motion: reduce) {
    .back-top.flying { animation: none; opacity: 0; }
    .back-top.flying .back-top-cape { animation: none; }
  }
  /* 落地：眨眼 + // top */
  .back-top-land {
    position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translateX(-50%);
    font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .04em;
    color: var(--gold-light); white-space: nowrap;
    background: rgba(10,10,12,.92); border: 1px solid rgba(245,197,24,.35);
    border-radius: 999px; padding: 3px 10px;
    opacity: 0; pointer-events: none; transition: opacity .2s;
  }
  .back-top.land {
    opacity: 1 !important; pointer-events: auto;
    transform: none !important;
    border-color: rgba(245,197,24,.55);
    box-shadow: 0 0 0 1px rgba(245,197,24,.2), 0 12px 28px rgba(245,197,24,.2);
  }
  .back-top.land .back-top-land { opacity: 1; animation: landPop .45s cubic-bezier(.2,1.3,.4,1); }
  .back-top.land .back-top-cat { animation: landBlink .7s ease; }
  .back-top.pulse {
    opacity: 1 !important; pointer-events: auto;
    animation: topPulse 1.1s ease;
    border-color: rgba(245,197,24,.65);
  }
  @keyframes landPop {
    from { opacity: 0; transform: translateX(-50%) translateY(6px) scale(.9); }
    to { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
  }
  @keyframes landBlink {
    0%, 100% { transform: scaleY(1); }
    18%, 28% { transform: scaleY(0.12); }
    35% { transform: scaleY(1); }
    48%, 58% { transform: scaleY(0.12); }
    68% { transform: scaleY(1); }
  }
  @keyframes topPulse {
    0%, 100% { box-shadow: 0 10px 28px rgba(0,0,0,.45); transform: scale(1); }
    30% { box-shadow: 0 0 0 6px rgba(245,197,24,.25), 0 14px 36px rgba(245,197,24,.35); transform: scale(1.08); }
    60% { box-shadow: 0 0 0 2px rgba(245,197,24,.15), 0 12px 30px rgba(245,197,24,.2); transform: scale(1.03); }
  }

  /* 定价卡宠物可点 */
  .pet-btn {
    appearance: none; border: none; background: transparent; padding: 4px; margin: 0;
    cursor: pointer; border-radius: 12px; line-height: 0;
    transition: transform .2s, filter .2s, box-shadow .2s;
  }
  .pet-btn:hover { transform: scale(1.08); filter: drop-shadow(0 0 8px rgba(245,197,24,.35)); }
  .pet-btn:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
  .pet-btn:active { transform: scale(.96); }
  .pet-btn .pet, .pet-btn .member-pet { display: block; pointer-events: none; }
  .pet-btn .pet-free {
    image-rendering: pixelated;
    overflow: visible;
    filter: drop-shadow(0 3px 5px rgba(0,0,0,.45));
  }
  .member-head .pet-btn { margin-left: auto; }

  @media (max-width: 960px) {
    .hero { grid-template-columns: 1fr; padding-top: 140px; gap: 64px; }
    .features-grid, .steps, .pricing-grid { grid-template-columns: 1fr 1fr; }
    .demo-wrap { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .member-card { transform: none; }
  }
  @media (max-width: 860px) {
    .nav-links {
      display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column;
      background: rgba(10,10,12,.97); backdrop-filter: blur(16px); padding: 20px 24px; gap: 14px;
      border-bottom: 1px solid var(--border);
    }
    body.nav-open .nav-links { display: flex; }
    .burger { display: block; }
    .nav-cta { display: none; }
  }
  @media (max-width: 640px) {
    .features-grid, .steps, .pricing-grid, .dl-grid, .footer-grid { grid-template-columns: 1fr; }
    .canvas-card { height: 360px; }
    .float-card { display: none; }
    .section { padding: 72px 0; }
  }