:root {
    --bg: #0a1118;
    --surface: #142230;
    --surface-hover: #1c2e40;
    --accent: #4dd0ff;
    --accent-hover: #2bb8eb;
    --accent2: #ffd166;
    --accent2-hover: #e6b84d;
    --text: #f0faff;
    --muted: #8fa8b8;
    --font-display: 'Russo One', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --radius: 12px;
    --transition: all 0.3s ease;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }
  a { color: var(--accent); text-decoration: none; transition: var(--transition); }
  a:hover { color: var(--accent-hover); }
  img { max-width: 100%; height: auto; display: block; }
  .container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 20px; }

  /* Typography */
  h1, h2, h3, .font-display { font-family: var(--font-display); font-weight: normal; letter-spacing: 0.5px; }
  h1 { font-size: 2rem; color: var(--text); line-height: 1.2; margin-bottom: 1rem; }
  h2 { font-size: 1.5rem; color: var(--accent2); margin-bottom: 1rem; }
  h3 { font-size: 1.25rem; color: var(--text); margin-bottom: 0.75rem; }
  p { margin-bottom: 1rem; }

  /* Buttons */
  .btn {
    display: inline-flex; justify-content: center; align-items: center;
    padding: 10px 24px; border-radius: 8px; font-family: var(--font-display);
    font-size: 0.9rem; text-transform: uppercase; cursor: pointer; transition: var(--transition);
    text-align: center; border: none; min-height: 44px;
  }
  .btn-primary { background-color: var(--accent2); color: #000; }
  .btn-primary:hover { background-color: var(--accent2-hover); transform: translateY(-2px); }
  .btn-secondary { background-color: transparent; color: var(--accent); border: 2px solid var(--accent); }
  .btn-secondary:hover { background-color: rgba(77, 208, 255, 0.1); transform: translateY(-2px); }

  /* Header (Verbatim Support) */
  header { background-color: rgba(10, 17, 24, 0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(143, 168, 184, 0.2); }
  .header-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
  .logo { font-family: var(--font-display); font-size: 1.8rem; color: var(--text); display: flex; align-items: center; gap: 10px; }
  .logo span { color: var(--accent2); }
  .nav-links { display: none; gap: 20px; }
  .nav-links a { color: var(--text); font-weight: 600; font-size: 0.9rem; }
  .nav-links a:hover { color: var(--accent); }
  .header-ctas { display: none; gap: 10px; }
  .mobile-toggle { background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; padding: 5px; min-width: 44px; min-height: 44px; }
  .mobile-menu { display: none; flex-direction: column; background-color: var(--surface); padding: 20px; position: absolute; top: 70px; left: 0; width: 100%; border-bottom: 1px solid rgba(143, 168, 184, 0.2); }
  .mobile-menu.active { display: flex; }
  .mobile-menu a { padding: 12px 0; color: var(--text); font-weight: 600; border-bottom: 1px solid rgba(143, 168, 184, 0.1); }
  .mobile-menu .header-ctas { display: flex; flex-direction: column; margin-top: 20px; gap: 10px; }
  .mobile-menu .btn { width: 100%; }

  @media (min-width: 1024px) {
    .nav-links { display: flex; }
    .header-ctas { display: flex; }
    .mobile-toggle { display: none; }
    .mobile-menu { display: none !important; }
  }

  /* RTP Page Specific Layout - "Dashboard/Sky" Feel */
  .rtp-hero {
    padding: 60px 0 40px;
    background: radial-gradient(circle at 50% 0%, var(--surface) 0%, var(--bg) 80%);
    text-align: center;
    position: relative;
    border-bottom: 1px dashed rgba(77, 208, 255, 0.2);
  }
  .breadcrumb {
    font-size: 0.85rem; color: var(--muted); margin-bottom: 1.5rem; display: inline-block;
    background: rgba(20, 34, 48, 0.8); padding: 6px 16px; border-radius: 20px;
  }
  .h1-wrapper { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 1.5rem; }
  .live-indicator {
    width: 12px; height: 12px; background-color: #ff4d4d; border-radius: 50%; display: inline-block;
    box-shadow: 0 0 10px #ff4d4d; animation: pulse 2s infinite;
  }
  @keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 77, 77, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(255, 77, 77, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 77, 77, 0); }
  }
  .meta-chips { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
  .chip {
    font-size: 0.8rem; font-weight: 600; padding: 4px 12px; border-radius: 12px;
    background: var(--surface); border: 1px solid rgba(143, 168, 184, 0.3); color: var(--muted);
  }

  .main-content { padding: 40px 0; }

  .rtp-intro-block {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(20, 34, 48, 0.4) 100%);
    border-left: 4px solid var(--accent); padding: 24px; border-radius: 0 var(--radius) var(--radius) 0;
    margin-bottom: 40px; font-size: 1.1rem; color: #fff;
  }

  .content-grid { display: grid; gap: 30px; margin-bottom: 40px; }
  @media (min-width: 768px) { .content-grid { grid-template-columns: 1fr 1fr; } }

  .data-card {
    background: var(--surface); padding: 30px; border-radius: var(--radius);
    border: 1px solid rgba(255, 209, 102, 0.1); position: relative; overflow: hidden;
    transition: var(--transition);
  }
  .data-card:hover { transform: translateY(-5px); border-color: rgba(255, 209, 102, 0.3); box-shadow: 0 10px 20px rgba(0,0,0,0.2); }
  .data-card::before {
    content: ''; position: absolute; top: 0; right: 0; width: 60px; height: 60px;
    background: linear-gradient(135deg, transparent 50%, rgba(77, 208, 255, 0.1) 50%);
  }
  .data-card.full-width { grid-column: 1 / -1; }

  .rtp-list { list-style: none; margin: 15px 0; padding: 0; }
  .rtp-list li {
    position: relative; padding-left: 28px; margin-bottom: 12px; color: var(--text);
  }
  .rtp-list li::before {
    content: ''; position: absolute; left: 0; top: 6px; width: 10px; height: 10px;
    background-color: var(--accent2); transform: rotate(45deg); /* Kite shape bullet */
  }

  /* FAQ Section */
  .faq-section { margin-bottom: 50px; }
  .faq-section h2 { text-align: center; margin-bottom: 30px; color: var(--accent); }
  details {
    background: var(--surface); margin-bottom: 15px; border-radius: var(--radius);
    border: 1px solid rgba(143, 168, 184, 0.1); transition: var(--transition);
  }
  details[open] { border-color: var(--accent); }
  summary {
    padding: 18px 20px; font-family: var(--font-display); font-size: 1.1rem;
    cursor: pointer; display: flex; justify-content: space-between; align-items: center;
    list-style: none;
  }
  summary::-webkit-details-marker { display: none; }
  summary::after {
    content: '+'; color: var(--accent2); font-size: 1.5rem; transition: transform 0.3s;
  }
  details[open] summary::after { content: '-'; transform: rotate(180deg); }
  details p { padding: 0 20px 20px; color: var(--muted); margin: 0; }

  /* Related Links */
  .related-section { margin-bottom: 50px; padding: 30px; background: rgba(20, 34, 48, 0.5); border-radius: var(--radius); text-align: center; }
  .related-section h3 { color: var(--accent2); margin-bottom: 20px; }
  .related-grid { display: flex; flex-wrap: wrap; gap: 15px; justify-content: center; }
  .related-link {
    background: var(--bg); border: 1px solid rgba(77, 208, 255, 0.3); padding: 12px 20px;
    border-radius: 30px; font-weight: 600; font-size: 0.9rem;
  }
  .related-link:hover { background: var(--accent); color: #000; border-color: var(--accent); }

  /* Final CTA */
  .cta-banner {
    background: linear-gradient(135deg, var(--surface) 0%, #1a2f45 100%);
    padding: 50px 20px; text-align: center; border-radius: var(--radius);
    margin-bottom: 50px; border: 1px solid rgba(255, 209, 102, 0.2);
  }
  .cta-banner h2 { font-size: 2rem; color: var(--text); margin-bottom: 15px; }
  .cta-banner p { color: var(--muted); margin-bottom: 30px; font-size: 1.1rem; }
  .cta-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }

  /* Footer (Verbatim Support) */
  footer { background-color: var(--surface); border-top: 1px solid rgba(143, 168, 184, 0.1); padding: 60px 0 20px; }
  .footer-grid { display: grid; gap: 40px; margin-bottom: 40px; }
  @media (min-width: 768px) { .footer-grid { grid-template-columns: 1fr 2fr; } }
  .footer-brand { font-family: var(--font-display); font-size: 2rem; color: var(--text); margin-bottom: 15px; }
  .footer-brand span { color: var(--accent2); }
  .footer-tagline { color: var(--muted); max-width: 300px; }
  .footer-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 15px; }
  .footer-links a { color: var(--muted); font-size: 0.9rem; }
  .footer-links a:hover { color: var(--accent); }
  .footer-bottom { text-align: center; color: var(--muted); font-size: 0.85rem; border-top: 1px solid rgba(143, 168, 184, 0.1); padding-top: 20px; }

  /* Utilities */
  .text-accent { color: var(--accent); }


/* pipeline image & layout guards */
html, body { overflow-x: clip; }
img { max-width: 100%; height: auto; }
img.site-logo { height: 40px; width: auto; max-width: 240px; object-fit: contain; flex: none; }
header .logo a { display: inline-flex; align-items: center; flex: none; text-decoration: none; }
img.hero-visual { width: 100%; max-width: 560px; height: auto; object-fit: cover; border-radius: 16px; display: block; margin-inline: auto; }
img[class^="strip-"], img[class*=" strip-"] { width: 100%; height: auto; display: block; border-radius: 12px; object-fit: cover; }
/* 合规声明块（zb-disclaimer，全站 footer） */
.zb-disclaimer { margin-top: 18px !important; padding: 14px 0 0 0 !important; border-top: 1px solid rgba(128,128,128,.25) !important; font-size: .72rem !important; line-height: 1.7 !important; opacity: .85 !important; display: block !important; text-align: left !important; width: 100% !important; clear: both !important; }
.zb-disclaimer .zb-18 { display: inline-block !important; padding: 2px 10px !important; border: 1.5px solid currentColor !important; border-radius: 6px !important; font-weight: 800 !important; letter-spacing: 1px !important; margin: 0 0 10px 0 !important; font-size: .78rem !important; }
.zb-disclaimer p { display: block !important; margin: 5px 0 !important; padding: 0 !important; color: inherit !important; font-size: .72rem !important; line-height: 1.7 !important; }
.zb-disclaimer p:last-child { margin-bottom: 0 !important; }