* { margin: 0; padding: 0; box-sizing: border-box; }
  :root {
    --bg: #101014;
    --panel: #18181F;
    --focus: #FF7A00;
    --text: #FFFFFF;
    --text-dim: #A0A0AA;
    --radius: 18px;
    --nav-h: 72px;
  }
  html { scroll-behavior: smooth; }
  body {
    background-color: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  a { text-decoration: none; color: inherit; }
  ul { list-style: none; }
  button { font-family: inherit; border: none; cursor: pointer; background: none; }
  img { max-width: 100%; height: auto; display: block; }
  section { scroll-margin-top: 86px; padding: 60px 20px; }
  .container { max-width: 1200px; margin: 0 auto; }

  /* Focus styles */
  .fx { transition: transform 0.2s ease, outline 0.2s ease, box-shadow 0.2s ease; outline: 4px solid transparent; outline-offset: 2px; }
  .fx:focus, .fx.focused { transform: scale(1.08); outline-color: var(--focus); box-shadow: 0 0 15px rgba(255, 122, 0, 0.5); }

  /* Nav */
  header {
    position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h);
    background: rgba(16, 16, 20, 0.85); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    z-index: 1000; border-bottom: 1px solid rgba(255,255,255,0.05);
  }
  .nav-inner { max-width: 1200px; margin: 0 auto; height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; }
  .logo { font-size: 21px; font-weight: 800; display: flex; align-items: center; gap: 8px; }
  .logo img { height: 32px; border-radius: 8px; }
  .logo-tv { color: var(--focus); }
  .nav-links { display: flex; gap: 24px; }
  .nav-links a { font-size: 17px; color: var(--text-dim); }
  .nav-links a:hover { color: var(--focus); }
  .btn-nav { background: var(--focus); color: #000; font-weight: bold; padding: 10px 24px; border-radius: 24px; font-size: 16px; }

  /* Hero */
  #home { padding-top: calc(var(--nav-h) + 40px); }
  .status-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 16px; }
  .pill-orange { background: rgba(255,122,0,0.15); color: var(--focus); border: 1px solid var(--focus); padding: 6px 16px; border-radius: 20px; font-size: 16px; font-weight: 500; }
  .status-date { color: var(--text-dim); font-size: 18px; margin-left: 16px; }
  .status-clock { font-size: 30px; font-weight: bold; font-variant-numeric: tabular-nums; }

  .hero-card {
    position: relative; border-radius: var(--radius); overflow: hidden;
    height: clamp(300px, 38vw, 430px); display: flex; align-items: center;
  }
  .hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1; }
  .hero-mask { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to right, rgba(16,16,20,0.95) 0%, rgba(16,16,20,0.8) 40%, rgba(16,16,20,0) 100%); z-index: 2; }
  .hero-content { position: relative; z-index: 3; padding: 40px; max-width: 600px; }
  .hero-content h1 { font-size: clamp(32px, 5vw, 54px); line-height: 1.2; margin: 16px 0; font-weight: 800; }
  .hero-desc { font-size: 20px; color: #ddd; margin-bottom: 32px; }
  .hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn-primary { background: var(--focus); color: #000; font-size: 20px; font-weight: bold; padding: 16px 32px; border-radius: 30px; }
  .btn-secondary { background: rgba(255,255,255,0.1); color: var(--text); border: 2px solid rgba(255,255,255,0.3); font-size: 20px; font-weight: bold; padding: 16px 32px; border-radius: 30px; }

  /* Section Common */
  .sec-title { font-size: 32px; font-weight: bold; margin-bottom: 40px; display: flex; align-items: center; gap: 12px; }
  .sec-title::before { content: ""; display: inline-block; width: 8px; height: 24px; background: var(--focus); border-radius: 4px; }

  /* Features */
  .grid-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
  .feature-card { background: var(--panel); padding: 32px; border-radius: var(--radius); transition: transform 0.3s; }
  .feature-card:hover { transform: translateY(-4px); }
  .feature-icon { width: 48px; height: 48px; color: var(--focus); margin-bottom: 24px; }
  .feature-card h3 { font-size: 24px; margin-bottom: 12px; }
  .feature-card p { font-size: 18px; color: var(--text-dim); }

  /* Library */
  .row-title { font-size: 20px; color: var(--text-dim); margin: 32px 0 16px; font-weight: 500; }
  .scroll-row { display: flex; gap: 20px; overflow-x: auto; padding-bottom: 20px; scrollbar-width: none; }
  .scroll-row::-webkit-scrollbar { display: none; }
  .lib-card { flex: 0 0 272px; background: var(--panel); border-radius: var(--radius); overflow: hidden; display: block; }
  .lib-img-wrap { width: 100%; aspect-ratio: 16/9; overflow: hidden; }
  .lib-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
  .lib-info { padding: 16px; }
  .lib-info h3 { font-size: 21px; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .lib-info p { font-size: 16px; color: var(--text-dim); }

  /* Scenes */
  .grid-scenes { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
  .scene-card { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/9; }
  .scene-card img { width: 100%; height: 100%; object-fit: cover; }
  .scene-mask { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0) 60%); display: flex; align-items: flex-end; padding: 20px; }
  .scene-mask span { font-size: 20px; font-weight: bold; }

  /* UI */
  .grid-ui { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
  @media (min-width: 800px) { .grid-ui { grid-template-columns: repeat(3, 1fr); } }
  .ui-card { background: var(--panel); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius); overflow: hidden; }
  .ui-card img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }
  .ui-info { padding: 20px; }
  .ui-info h3 { font-size: 20px; margin-bottom: 8px; }
  .ui-info p { font-size: 16px; color: var(--text-dim); }

  /* Reviews */
  .grid-reviews { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
  .review-card { background: var(--panel); padding: 28px; border-radius: var(--radius); display: flex; flex-direction: column; gap: 16px; }
  .stars { color: var(--focus); font-size: 18px; letter-spacing: 2px; }
  .review-text { font-size: 17px; line-height: 1.6; color: #eee; flex-grow: 1; }
  .review-author { font-size: 15px; color: var(--text-dim); }

  /* FAQ */
  .faq-list { display: flex; flex-direction: column; gap: 16px; max-width: 800px; }
  .faq-item { background: var(--panel); border-radius: var(--radius); overflow: hidden; }
  .faq-q { width: 100%; text-align: left; padding: 24px; font-size: 20px; font-weight: 500; display: flex; justify-content: space-between; align-items: center; color: var(--text); }
  .faq-q::after { content: "+"; font-size: 24px; color: var(--focus); transition: transform 0.3s; }
  .faq-item.active .faq-q::after { transform: rotate(45deg); }
  .faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; font-size: 18px; color: var(--text-dim); line-height: 1.6; }
  .faq-item.active .faq-a { padding: 0 24px 24px; max-height: 200px; }

  /* Download */
  .download-panel { border: 2px solid var(--focus); border-radius: 24px; padding: 48px; text-align: center; background: linear-gradient(180deg, rgba(255,122,0,0.05) 0%, transparent 100%); }
  .download-panel h2 { font-size: 36px; margin-bottom: 16px; }
  .download-panel p { font-size: 18px; color: var(--text-dim); margin-bottom: 32px; }
  .download-btns { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 24px; }
  .download-btns .btn-primary, .download-btns .btn-secondary { font-size: 18px; padding: 14px 28px; }
  .download-note { font-size: 14px; color: #666; }

  /* Footer */
  footer { padding: 40px 20px; text-align: center; font-size: 14px; color: #666; border-top: 1px solid rgba(255,255,255,0.05); display: flex; flex-direction: column; gap: 12px; }
  footer a { color: #888; transition: color 0.2s; }
  footer a:hover { color: var(--focus); }
  .update-time { font-size: 12px; color: #555; }

  /* Responsive */
  @media (max-width: 760px) {
    :root { --nav-h: 60px; }
    .nav-inner { padding: 0 16px; }
    .logo { font-size: 18px; }
    .logo img { height: 26px; }
    .nav-links { display: none; } /* Hide links on mobile for clean look, or horizontal scroll if needed */
    .btn-nav { padding: 8px 16px; font-size: 14px; }
    section { padding: 40px 16px; }
    .sec-title { font-size: 26px; margin-bottom: 24px; }
    .hero-content { padding: 24px; }
    .hero-content h1 { font-size: 32px; }
    .hero-desc { font-size: 16px; }
    .btn-primary, .btn-secondary { font-size: 16px; padding: 12px 20px; width: 100%; text-align: center; }
    .download-panel { padding: 32px 20px; }
    .download-panel h2 { font-size: 28px; }
    .status-clock { font-size: 24px; }
    .status-date { font-size: 16px; margin-left: 12px; }
  }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  }