:root {
    --bg: #070d12;
    --surface: #122030;
    --surface-light: #1e334a;
    --accent: #f97316;
    --accent-hover: #ea580c;
    --accent2: #38bdf8;
    --text: #f0f8ff;
    --muted: #8fa5b8;
    --border: rgba(143, 165, 184, 0.2);
    --font-display: 'Oswald', sans-serif;
    --font-body: 'Fira Sans', sans-serif;
    --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;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  a { color: var(--accent2); text-decoration: none; transition: var(--transition); }
  a:hover { color: var(--accent); }

  .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

  /* Typography */
  h1, h2, h3, .brand { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.5px; }

  /* --- HEADER & FOOTER STYLES (To match Homepage Family) --- */
  header { background-color: rgba(7, 13, 18, 0.95); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; backdrop-filter: blur(10px); }
  .nav-container { display: flex; justify-content: space-between; align-items: center; height: 70px; }
  .brand { font-size: 24px; font-weight: 700; color: var(--accent); display: flex; align-items: center; gap: 10px; }
  .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); }
  .nav-actions { display: none; gap: 12px; }
  .btn { display: inline-flex; justify-content: center; align-items: center; padding: 10px 20px; font-family: var(--font-display); font-weight: 600; font-size: 15px; border-radius: 4px; text-transform: uppercase; cursor: pointer; min-height: 44px; transition: var(--transition); border: none; }
  .btn-primary { background-color: var(--accent); color: #fff; }
  .btn-primary:hover { background-color: var(--accent-hover); box-shadow: 0 0 15px rgba(249, 115, 22, 0.4); color: #fff; }
  .btn-secondary { background-color: transparent; color: var(--accent2); border: 1px solid var(--accent2); }
  .btn-secondary:hover { background-color: rgba(56, 189, 248, 0.1); color: var(--accent2); }
  .menu-toggle { background: transparent; border: none; color: var(--text); font-size: 24px; cursor: pointer; min-width: 44px; min-height: 44px; display: flex; align-items: center; justify-content: center; }

  .mobile-menu { display: none; flex-direction: column; background-color: var(--surface); position: absolute; top: 70px; left: 0; right: 0; padding: 20px; border-bottom: 1px solid var(--border); }
  .mobile-menu.active { display: flex; }
  .mobile-menu a { padding: 12px 0; border-bottom: 1px solid var(--border); color: var(--text); font-weight: 500; }
  .mobile-menu .btn { margin-top: 15px; border-bottom: none; width: 100%; }

  footer { background-color: #04080b; border-top: 1px solid var(--border); padding: 60px 0 30px; margin-top: 80px; }
  .footer-brand { font-size: 28px; font-weight: 700; color: var(--accent); font-family: var(--font-display); text-transform: uppercase; margin-bottom: 15px; }
  .footer-tagline { color: var(--muted); margin-bottom: 30px; max-width: 400px; }
  .footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-bottom: 40px; }
  .footer-links a { color: var(--muted); font-size: 14px; }
  .footer-links a:hover { color: var(--accent2); }
  .copyright { color: var(--muted); font-size: 13px; border-top: 1px solid var(--border); padding-top: 20px; text-align: center; }

  /* --- PAGE SPECIFIC STYLES (Terminal/Station Motif) --- */

  /* Hero Section */
  .hero {
    position: relative;
    padding: 80px 0 60px;
    background-color: var(--bg);
    background-image:
      linear-gradient(rgba(56, 189, 248, 0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(56, 189, 248, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center top;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
  }
  .hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0; height: 100px;
    background: linear-gradient(to top, var(--bg), transparent);
    pointer-events: none;
  }
  .hero-content { position: relative; z-index: 2; text-align: center; max-width: 800px; margin: 0 auto; }
  .breadcrumb {
    font-family: var(--font-display);
    font-size: 13px;
    color: var(--accent2);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    display: inline-block;
    padding: 6px 12px;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 4px;
  }
  .hero h1 {
    font-size: 32px;
    line-height: 1.2;
    margin-bottom: 24px;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
  }
  .meta-chips { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
  .chip {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    color: var(--muted);
    background: var(--surface);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--border);
  }
  .chip::before {
    content: '';
    display: inline-block;
    width: 6px; height: 6px;
    background-color: var(--accent);
    border-radius: 50%;
    margin-right: 8px;
  }

  /* Main Content Area */
  .page-main { padding: 50px 0; }
  .article-layout { max-width: 800px; margin: 0 auto; }

  .intro-block {
    font-size: 18px;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 50px;
    padding: 24px;
    background: linear-gradient(135deg, var(--surface), rgba(18, 32, 48, 0.3));
    border-left: 4px solid var(--accent);
    border-radius: 0 8px 8px 0;
  }

  .content-section { margin-bottom: 50px; position: relative; }

  .section-header { display: flex; align-items: flex-start; gap: 15px; margin-bottom: 20px; }
  .section-badge {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: var(--bg);
    background-color: var(--accent2);
    padding: 4px 8px;
    border-radius: 2px;
    margin-top: 4px;
  }
  .content-section h2 { font-size: 24px; color: #fff; }

  .content-section p { color: var(--muted); margin-bottom: 16px; font-size: 16px; }
  .content-section p a { border-bottom: 1px dashed var(--accent2); padding-bottom: 1px; }
  .content-section p a:hover { border-bottom-color: var(--accent); }

  /* Specific Section Styles */
  .panel-box {
    background-color: var(--surface);
    border: 1px solid var(--border);
    padding: 24px;
    border-radius: 8px;
    box-shadow: inset 0 2px 0 0 var(--accent2);
  }

  .data-list { list-style: none; margin: 20px 0; }
  .data-list li {
    position: relative;
    padding-left: 35px;
    margin-bottom: 15px;
    color: var(--muted);
  }
  .data-list li::before {
    content: '[>]';
    position: absolute;
    left: 0; top: 0;
    color: var(--accent);
    font-family: monospace;
    font-weight: bold;
    font-size: 16px;
  }

  /* FAQ Section */
  .faq-container { margin-top: 60px; }
  .faq-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
  }
  details {
    background-color: var(--surface);
    border: 1px solid var(--border);
    margin-bottom: 12px;
    border-radius: 4px;
    overflow: hidden;
  }
  summary {
    padding: 18px 20px;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    list-style: none;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  summary::-webkit-details-marker { display: none; }
  summary::after {
    content: '+';
    color: var(--accent);
    font-size: 20px;
    font-weight: bold;
    transition: transform 0.3s;
  }
  details[open] summary::after { transform: rotate(45deg); }
  details[open] summary { border-bottom: 1px solid var(--border); background-color: var(--surface-light); }
  details p { padding: 20px; margin: 0; color: var(--muted); }

  /* Related Pages Nav */
  .related-nav { margin-top: 60px; padding-top: 40px; border-top: 1px dashed var(--border); }
  .related-nav h3 { font-size: 18px; margin-bottom: 20px; color: var(--accent2); display: flex; align-items: center; gap: 10px; }
  .related-nav h3::before { content: ''; width: 20px; height: 2px; background: var(--accent2); }
  .related-grid { display: grid; grid-template-columns: 1fr; gap: 15px; }
  .rel-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--font-display);
    text-transform: uppercase;
    font-size: 15px;
    min-height: 44px;
  }
  .rel-card::after { content: '→'; color: var(--accent); font-size: 18px; transition: transform 0.3s; }
  .rel-card:hover { border-color: var(--accent); background-color: var(--surface-light); }
  .rel-card:hover::after { transform: translateX(5px); }

  /* Grand CTA */
  .grand-cta {
    margin-top: 60px;
    background: linear-gradient(145deg, var(--surface), #0a131c);
    border: 1px solid var(--border);
    border-top: 3px solid var(--accent);
    padding: 40px 20px;
    text-align: center;
    border-radius: 8px;
  }
  .grand-cta h2 { font-size: 26px; margin-bottom: 15px; color: #fff; }
  .grand-cta p { color: var(--muted); margin-bottom: 30px; }
  .cta-actions { display: flex; flex-direction: column; gap: 15px; justify-content: center; }
  .cta-actions .btn { width: 100%; }

  /* Breakpoints */
  @media (min-width: 768px) {
    .hero h1 { font-size: 42px; }
    .footer-links { grid-template-columns: repeat(4, 1fr); }
    .related-grid { grid-template-columns: repeat(3, 1fr); }
    .cta-actions { flex-direction: row; }
    .cta-actions .btn { width: auto; min-width: 180px; }
  }

  @media (min-width: 1024px) {
    .menu-toggle { display: none; }
    .nav-links, .nav-actions { display: flex; }
    .hero { padding: 100px 0 80px; }
    .hero h1 { font-size: 48px; }
  }


/* 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; }