:root {
    --bg: #081018;
    --surface: #122030;
    --surface-alt: #16283c;
    --accent: #60a5fa;
    --accent-hover: #3b82f6;
    --accent2: #fbbf24;
    --text: #f0f6ff;
    --muted: #8fa0b8;
    --border: rgba(96, 165, 250, 0.2);
    --border-strong: rgba(96, 165, 250, 0.4);
    --font-display: 'Anton', sans-serif;
    --font-body: 'Barlow', sans-serif;
    --radius: 4px; /* Sharp, professional feel */
    --transition: all 0.3s ease;
  }

  * { 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: var(--transition); }
  a:hover { color: var(--accent-hover); }

  .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: 400; letter-spacing: 0.5px; text-transform: uppercase; }
  h1 { font-size: 2.5rem; line-height: 1.1; margin-bottom: 1rem; color: var(--text); }
  h2 { font-size: 1.75rem; margin-bottom: 1rem; color: var(--accent); display: flex; align-items: center; gap: 10px; }
  h2::before { content: ""; display: block; width: 24px; height: 4px; background: var(--accent2); }
  h3 { font-size: 1.25rem; }
  p { margin-bottom: 1rem; color: var(--muted); font-size: 1.05rem; }
  p strong { color: var(--text); }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 1px;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    text-transform: uppercase;
    min-height: 44px;
  }
  .btn-primary {
    background: var(--accent);
    color: #000;
    border: none;
  }
  .btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
  }
  .btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
  }
  .btn-secondary:hover {
    background: rgba(96, 165, 250, 0.1);
  }

  /* HEADER (Exact Match Styling) */
  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-family: var(--font-display);
    font-size: 1.75rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .nav-links {
    display: none;
    gap: 24px;
  }
  .nav-links a {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
  }
  .nav-links a:hover { color: var(--accent); }
  .header-ctas {
    display: none;
    gap: 12px;
  }
  .mobile-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
  }
  .mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--surface);
    padding: 20px;
    border-bottom: 1px solid var(--border);
  }
  .mobile-menu.active { display: flex; }
  .mobile-menu a {
    padding: 12px 0;
    color: var(--text);
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

  /* HERO BANNER */
  .hero {
    padding: 60px 0 40px;
    background: linear-gradient(135deg, var(--bg) 0%, #0d1a28 100%);
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
  }
  .hero::after {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background-image: repeating-linear-gradient(45deg, var(--border) 0, var(--border) 1px, transparent 1px, transparent 20px);
    opacity: 0.05;
    pointer-events: none;
  }
  .breadcrumb {
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 1rem;
    display: inline-block;
  }
  .meta-chips {
    display: flex;
    gap: 10px;
    margin-top: 1.5rem;
    flex-wrap: wrap;
  }
  .chip {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 4px 12px;
    font-size: 0.85rem;
    border-radius: 20px;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
  }

  /* CONTENT LAYOUT */
  .content-area {
    padding: 40px 0;
  }
  .intro-box {
    background: var(--surface);
    border-left: 4px solid var(--accent);
    padding: 24px;
    margin-bottom: 40px;
    border-radius: 0 var(--radius) var(--radius) 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  }
  .intro-box p {
    margin: 0;
    color: var(--text);
    font-size: 1.1rem;
  }

  .section-block {
    margin-bottom: 50px;
  }

  /* LIST CARDS */
  .bonus-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 20px;
    list-style: none;
  }
  .bonus-list li {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    padding: 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: flex-start;
    gap: 16px;
    color: var(--text);
  }
  .bonus-list li::before {
    content: "✦";
    color: var(--accent2);
    font-size: 1.5rem;
    line-height: 1;
    font-family: var(--font-display);
  }

  /* FAQ SECTION */
  .faq-section {
    background: var(--surface);
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin-bottom: 50px;
  }
  .faq-section h2 { margin-bottom: 24px; }
  details {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
  }
  summary {
    padding: 16px 20px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  summary::-webkit-details-marker { display: none; }
  summary::after {
    content: "+";
    color: var(--accent);
    font-size: 1.5rem;
    font-family: var(--font-display);
  }
  details[open] summary::after { content: "-"; }
  details[open] summary { border-bottom: 1px solid var(--border); }
  details p {
    padding: 20px;
    margin: 0;
  }

  /* RELATED PAGES */
  .related-wrapper {
    margin-bottom: 50px;
  }
  .related-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }
  .related-grid a {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
  }
  .related-grid a:hover {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
  }

  /* CTA BLOCK */
  .cta-block {
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-alt) 100%);
    border: 1px solid var(--border-strong);
    padding: 40px;
    text-align: center;
    border-radius: var(--radius);
    margin-bottom: 40px;
  }
  .cta-block h2 {
    justify-content: center;
    margin-bottom: 16px;
  }
  .cta-block h2::before { display: none; }
  .cta-block p {
    max-width: 600px;
    margin: 0 auto 24px;
  }
  .cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
  }

  /* FOOTER (Exact Match Styling) */
  footer {
    background: #050a0f;
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
    text-align: center;
  }
  .footer-brand {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
  }
  .footer-tagline {
    color: var(--muted);
    max-width: 600px;
    margin: 0 auto 24px;
  }
  .footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px 24px;
    margin-bottom: 30px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
  }
  .footer-links a {
    color: var(--muted);
    font-size: 0.9rem;
  }
  .footer-links a:hover { color: var(--accent); }
  .footer-copy {
    color: #4a5b70;
    font-size: 0.85rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 20px;
  }

  /* MEDIA QUERIES */
  @media (min-width: 768px) {
    h1 { font-size: 3.5rem; }
    .nav-links, .header-ctas { display: flex; }
    .mobile-toggle { display: none; }
    .bonus-list { grid-template-columns: 1fr 1fr; }
  }
  @media (min-width: 1024px) {
    .content-area { padding: 60px 0; }
  }


/* 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; }