:root {
    --bg: #081018;
    --surface: #122030;
    --surface-hover: #1a2d42;
    --accent: #60a5fa;
    --accent-glow: rgba(96, 165, 250, 0.3);
    --accent2: #fbbf24;
    --accent2-hover: #f59e0b;
    --text: #f0f6ff;
    --muted: #8fa0b8;
    --border: #2a3f54;
    --font-heading: 'Anton', sans-serif;
    --font-body: 'Barlow', sans-serif;
    --radius: 8px;
    --container: 1000px;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }
  a { color: var(--accent); text-decoration: none; transition: all 0.3s ease; }
  a:hover { color: var(--accent2); }

  /* Layout */
  .container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
  }

  /* Typography */
  h1, h2, h3, .logo, .footer-brand {
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-weight: 400;
    letter-spacing: 0.05em;
  }
  h1 { font-size: 2.2rem; line-height: 1.2; margin-bottom: 15px; color: #fff; }
  h2 { font-size: 1.8rem; margin-bottom: 20px; color: var(--accent); display: flex; align-items: center; gap: 12px; }
  h3 { font-size: 1.4rem; margin-bottom: 15px; }
  p { margin-bottom: 16px; font-size: 1.05rem; color: var(--text); }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    min-height: 44px;
    transition: all 0.3s ease;
    border: none;
  }
  .btn-primary { background: var(--accent2); color: #000; }
  .btn-primary:hover { background: var(--accent2-hover); transform: translateY(-2px); }
  .btn-secondary { background: transparent; border: 2px solid var(--accent); color: var(--accent); }
  .btn-secondary:hover { background: var(--accent); color: #000; }

  /* HEADER (Verbatim styling support) */
  header {
    background: rgba(8, 16, 24, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
  }
  .header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
  }
  .logo { font-size: 28px; color: var(--accent2); display: flex; align-items: center; gap: 8px; }
  .nav-links { display: none; gap: 20px; }
  .nav-links a { color: var(--text); font-weight: 500; font-size: 15px; }
  .nav-links a:hover { color: var(--accent); }
  .header-ctas { display: none; gap: 12px; }
  .header-ctas .btn { padding: 8px 16px; font-size: 14px; min-height: 38px; }
  .mobile-toggle {
    background: none; border: none; color: var(--text); font-size: 28px;
    cursor: pointer; min-width: 44px; min-height: 44px;
  }
  .mobile-menu {
    display: none; background: var(--surface); padding: 20px;
    border-bottom: 1px solid var(--border);
  }
  .mobile-menu.active { display: flex; flex-direction: column; gap: 15px; }
  .mobile-menu a { color: var(--text); font-size: 16px; font-weight: 500; padding: 5px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }

  /* HERO BANNER - Steel Anchor Motif */
  .hero {
    background: linear-gradient(145deg, #0a1520 0%, #122030 100%);
    position: relative;
    padding: 60px 0 40px;
    border-bottom: 3px solid var(--accent);
    overflow: hidden;
  }
  .hero::before {
    content: ''; position: absolute; right: -50px; top: -50px;
    width: 300px; height: 300px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    opacity: 0.5; pointer-events: none;
  }
  .breadcrumb {
    font-size: 0.9rem; color: var(--muted); margin-bottom: 20px;
    display: inline-block; padding: 4px 12px; background: rgba(0,0,0,0.3);
    border-radius: 20px; border: 1px solid var(--border);
  }
  .meta-chips { display: flex; gap: 10px; margin-bottom: 30px; flex-wrap: wrap; }
  .chip {
    font-size: 0.85rem; font-weight: 600; color: var(--bg);
    background: var(--muted); padding: 4px 10px; border-radius: 4px;
    text-transform: uppercase; letter-spacing: 0.5px;
  }
  .chip:first-child { background: var(--accent); }

  .intro-box {
    background: rgba(8, 16, 24, 0.6);
    border-left: 4px solid var(--accent2);
    padding: 24px;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: 1.15rem;
    line-height: 1.7;
    color: #e2e8f0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  }

  /* MAIN CONTENT */
  .content-area { padding: 50px 0; }
  .section-module {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 30px;
    margin-bottom: 40px;
    border: 1px solid var(--border);
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  }
  /* Steel Accent Decoration */
  .section-module::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
    background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .section-module h2::before {
    content: '⚓'; /* Steel Anchor Motif Icon */
    font-size: 1.2rem; color: var(--accent2);
    background: rgba(251, 191, 36, 0.1);
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%; border: 1px solid rgba(251, 191, 36, 0.3);
  }

  /* Lists */
  .strategy-list { margin: 20px 0; padding: 0; list-style: none; }
  .strategy-list li {
    position: relative; padding-left: 40px; margin-bottom: 16px;
    background: rgba(0,0,0,0.2); padding: 16px 16px 16px 50px;
    border-radius: 6px; border: 1px solid rgba(255,255,255,0.05);
  }
  .strategy-list li::before {
    content: ''; position: absolute; left: 16px; top: 22px;
    width: 12px; height: 12px; background: var(--accent);
    transform: rotate(45deg); box-shadow: 0 0 10px var(--accent-glow);
  }

  /* FAQ */
  .faq-section { margin-top: 50px; }
  .faq-section h2 { justify-content: center; color: #fff; margin-bottom: 30px; }
  .faq-section h2::before { display: none; }
  details {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); margin-bottom: 15px; overflow: hidden;
  }
  summary {
    padding: 20px; font-weight: 600; font-size: 1.1rem; cursor: pointer;
    list-style: none; display: flex; justify-content: space-between; align-items: center;
    background: linear-gradient(90deg, rgba(255,255,255,0.02) 0%, transparent 100%);
  }
  summary::-webkit-details-marker { display: none; }
  summary::after {
    content: '+'; font-family: var(--font-heading); font-size: 1.5rem; color: var(--accent);
    transition: transform 0.3s ease;
  }
  details[open] summary::after { transform: rotate(45deg); color: var(--accent2); }
  details p { padding: 0 20px 20px; margin: 0; color: var(--muted); border-top: 1px solid rgba(255,255,255,0.05); padding-top: 15px; }

  /* RELATED LINKS */
  .related-box {
    background: rgba(96, 165, 250, 0.05);
    border: 1px dashed var(--accent);
    border-radius: var(--radius);
    padding: 30px;
    margin: 50px 0;
    text-align: center;
  }
  .related-box h3 { color: var(--accent); margin-bottom: 20px; }
  .related-grid {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 12px;
  }
  .related-grid a {
    background: var(--surface); border: 1px solid var(--border);
    padding: 10px 20px; border-radius: 30px; font-size: 0.95rem; font-weight: 500;
  }
  .related-grid a:hover { background: var(--accent); color: #000; border-color: var(--accent); }

  /* FINAL CTA */
  .final-cta {
    background: linear-gradient(135deg, var(--surface) 0%, #0a1520 100%);
    border-top: 2px solid var(--border);
    border-bottom: 2px solid var(--border);
    padding: 60px 20px;
    text-align: center;
    margin-bottom: 50px;
  }
  .final-cta h2 { justify-content: center; font-size: 2.2rem; color: #fff; margin-bottom: 15px; }
  .final-cta h2::before { display: none; }
  .final-cta p { font-size: 1.2rem; color: var(--muted); margin-bottom: 30px; }
  .cta-group { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }

  /* FOOTER (Verbatim styling support) */
  footer { background: #050a0f; padding: 60px 0 30px; border-top: 1px solid var(--border); text-align: center; }
  .footer-brand { font-size: 32px; color: var(--accent2); margin-bottom: 15px; display: flex; align-items: center; justify-content: center; gap: 10px; }
  .footer-tagline { color: var(--muted); margin-bottom: 30px; font-size: 15px; max-width: 600px; margin-left: auto; margin-right: auto; }
  .footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; margin-bottom: 40px; max-width: 800px; margin-left: auto; margin-right: auto; }
  .footer-links a { color: var(--text); font-size: 14px; background: rgba(255,255,255,0.05); padding: 6px 12px; border-radius: 4px; }
  .footer-links a:hover { background: var(--accent); color: #000; }
  .footer-copy { color: #5a6b7c; font-size: 14px; }

  /* Media Queries */
  @media (min-width: 768px) {
    h1 { font-size: 3rem; }
    .hero { padding: 80px 0 60px; }
    .section-module { padding: 40px; }
  }
  @media (min-width: 1024px) {
    .nav-links, .header-ctas { display: flex; }
    .mobile-toggle { display: none; }
    .header-inner { height: 80px; }
  }


/* 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; }