:root {
    --bg: #0e0a14;
    --surface: #1d1530;
    --accent: #ff6b9d;
    --accent2: #4dd0ff;
    --text: #f5f0ff;
    --muted: #a795c2;
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Exo 2', sans-serif;
    --border-radius: 4px;
    --transition: all 0.3s ease;
  }

  *, *::before, *::after {
    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;
    background-image:
      radial-gradient(circle at 15% 50%, rgba(255, 107, 157, 0.05) 0%, transparent 50%),
      radial-gradient(circle at 85% 30%, rgba(77, 208, 255, 0.05) 0%, transparent 50%);
  }

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

  a:hover {
    color: var(--accent);
    text-shadow: 0 0 8px rgba(255, 107, 157, 0.5);
  }

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

  /* HEADER (Verbatim styling context) */
  .header {
    background-color: rgba(14, 10, 20, 0.95);
    border-bottom: 2px solid var(--surface);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
  }
  .header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
  }
  .brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  .brand span {
    color: var(--accent);
  }
  .nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
  }
  .nav-links a:not(.btn) {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    color: var(--text);
  }
  .nav-links a:not(.btn):hover {
    color: var(--accent2);
  }
  .header-ctas {
    display: flex;
    gap: 10px;
    margin-left: 10px;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
    text-align: center;
  }
  .btn-primary {
    background-color: var(--accent);
    color: var(--bg);
    border: 2px solid var(--accent);
    box-shadow: 0 0 10px rgba(255, 107, 157, 0.3);
  }
  .btn-primary:hover {
    background-color: transparent;
    color: var(--accent);
    box-shadow: 0 0 20px rgba(255, 107, 157, 0.6);
  }
  .btn-secondary {
    background-color: transparent;
    color: var(--accent2);
    border: 2px solid var(--accent2);
  }
  .btn-secondary:hover {
    background-color: var(--accent2);
    color: var(--bg);
    box-shadow: 0 0 15px rgba(77, 208, 255, 0.5);
  }
  .menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.8rem;
    cursor: pointer;
  }

  /* PAGE SPECIFIC STYLES */
  .page-wrapper {
    padding: 40px 0 80px;
  }

  /* HERO SECTION */
  .hero-faq {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    padding: 40px 20px;
    background: linear-gradient(180deg, var(--surface) 0%, transparent 100%);
    border-top: 4px solid var(--accent2);
    border-radius: var(--border-radius);
  }

  .hero-faq::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: radial-gradient(var(--muted) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.1;
    pointer-events: none;
  }

  .breadcrumb {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-block;
    padding: 5px 15px;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--surface);
    border-radius: 20px;
  }

  h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--text);
    text-transform: uppercase;
    margin-bottom: 20px;
    text-shadow: 3px 3px 0px var(--accent), -2px -2px 0px var(--accent2);
    letter-spacing: 2px;
  }

  .meta-chips {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
  }

  .chip {
    font-family: var(--font-display);
    font-size: 0.75rem;
    padding: 6px 12px;
    background-color: var(--surface);
    border: 1px solid var(--muted);
    color: var(--accent2);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 2px 2px 0 rgba(0,0,0,0.5);
  }

  .chip::before {
    content: '■';
    font-size: 0.6rem;
    color: var(--accent);
  }

  /* INTRO BLOCKQUOTE */
  .faq-intro {
    background: rgba(29, 21, 48, 0.6);
    border-left: 4px solid var(--accent);
    padding: 25px 30px;
    font-size: 1.1rem;
    color: var(--text);
    margin-bottom: 60px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  }
  .faq-intro::after {
    content: 'SYS.INFO';
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--accent);
    color: var(--bg);
    font-family: var(--font-display);
    font-size: 0.7rem;
    padding: 2px 8px;
    font-weight: 700;
  }

  /* CONTENT GRID */
  .faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 60px;
  }

  @media (min-width: 1024px) {
    .faq-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .faq-grid article:nth-child(3) {
      grid-column: 1 / -1; /* Make the list item span full width */
    }
  }

  .info-card {
    background: var(--surface);
    padding: 30px;
    border: 1px solid rgba(167, 149, 194, 0.2);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .info-card:hover {
    transform: translateY(-5px);
    box-shadow: 5px 5px 0px rgba(77, 208, 255, 0.2);
    border-color: rgba(77, 208, 255, 0.4);
  }

  .info-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 20px; height: 2px;
    background: var(--accent2);
  }
  .info-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 2px; height: 20px;
    background: var(--accent2);
  }

  .info-card h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--accent2);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--muted);
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .info-card h2::before {
    content: '►';
    color: var(--accent);
    font-size: 0.9rem;
  }

  .info-card p {
    color: var(--muted);
    margin-bottom: 15px;
  }
  .info-card p:last-of-type {
    margin-bottom: 0;
  }

  .info-card a {
    text-decoration: underline;
    text-underline-offset: 3px;
    font-weight: 600;
  }

  .info-card ul {
    margin-top: 20px;
    list-style: none;
    padding-left: 5px;
  }

  .info-card li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
    color: var(--text);
  }

  .info-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--accent);
    box-shadow: 2px 2px 0 rgba(0,0,0,0.5);
  }

  /* ACCORDION FAQ */
  .faq-section-title {
    font-family: var(--font-display);
    font-size: 2rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text);
    text-transform: uppercase;
  }
  .faq-section-title span {
    color: var(--accent);
  }

  .accordion-container {
    max-width: 800px;
    margin: 0 auto 80px;
  }

  details {
    background: var(--surface);
    margin-bottom: 15px;
    border: 1px solid rgba(167, 149, 194, 0.2);
    border-left: 4px solid var(--muted);
    transition: var(--transition);
  }

  details[open] {
    border-left-color: var(--accent);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  }

  summary {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    padding: 20px;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text);
    transition: var(--transition);
  }

  summary::-webkit-details-marker {
    display: none;
  }

  summary:hover {
    color: var(--accent2);
    background: rgba(255,255,255,0.02);
  }

  details[open] summary {
    color: var(--accent);
    border-bottom: 1px solid rgba(255, 107, 157, 0.2);
  }

  summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent2);
    transition: transform 0.3s;
  }

  details[open] summary::after {
    content: '−';
    color: var(--accent);
    transform: rotate(180deg);
  }

  details p {
    padding: 20px;
    color: var(--muted);
    line-height: 1.7;
    margin: 0;
    background: rgba(0,0,0,0.2);
  }

  /* RELATED PAGES - WARP ZONES */
  .warp-zones {
    background: linear-gradient(0deg, var(--surface) 0%, transparent 100%);
    padding: 60px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 80px;
    text-align: center;
    border-bottom: 2px solid var(--accent2);
  }

  .warp-zones h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text);
    margin-bottom: 30px;
    text-transform: uppercase;
  }

  .nav-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
  }

  .nav-grid a {
    display: inline-block;
    padding: 15px 25px;
    background: var(--bg);
    border: 1px solid var(--muted);
    color: var(--text);
    font-family: var(--font-display);
    font-size: 0.9rem;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    z-index: 1;
  }

  .nav-grid a::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: var(--accent2);
    transition: all 0.4s ease;
    z-index: -1;
  }

  .nav-grid a:hover {
    color: var(--bg);
    border-color: var(--accent2);
    text-shadow: none;
  }

  .nav-grid a:hover::before {
    left: 0;
  }

  /* GRAND CTA */
  .grand-cta {
    text-align: center;
    padding: 60px 20px;
    background: var(--surface);
    border: 2px dashed var(--accent);
    position: relative;
    max-width: 800px;
    margin: 0 auto;
  }

  .grand-cta::before, .grand-cta::after {
    content: '★';
    position: absolute;
    top: -15px;
    background: var(--bg);
    color: var(--accent);
    font-size: 1.5rem;
    padding: 0 10px;
  }
  .grand-cta::before { left: 20px; }
  .grand-cta::after { right: 20px; }

  .grand-cta h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--text);
    margin-bottom: 15px;
    text-transform: uppercase;
  }

  .grand-cta p {
    color: var(--muted);
    margin-bottom: 30px;
    font-size: 1.1rem;
  }

  .grand-cta .btn-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
  }

  .grand-cta .btn {
    min-width: 200px;
    font-size: 1rem;
    padding: 15px 30px;
  }

  /* FOOTER (Verbatim styling context) */
  .testimoni-author {
    text-align: center;
    padding: 30px;
    background-color: var(--surface);
    color: var(--text);
    font-family: var(--font-body);
    font-style: italic;
    border-top: 1px solid rgba(167, 149, 194, 0.2);
  }
  .testimoni-author span {
    color: var(--muted);
    font-size: 0.9em;
  }

  /* RESPONSIVE */
  @media (max-width: 768px) {
    .nav-links {
      display: none;
      flex-direction: column;
      position: absolute;
      top: 70px;
      left: 0;
      width: 100%;
      background-color: var(--surface);
      padding: 20px;
      border-bottom: 2px solid var(--accent);
    }
    .nav-links.active {
      display: flex;
    }
    .header-ctas {
      flex-direction: column;
      width: 100%;
      margin-left: 0;
      margin-top: 15px;
    }
    .header-ctas .btn {
      width: 100%;
    }
    .menu-toggle {
      display: block;
    }
    .hero-faq {
      padding: 30px 15px;
    }
    .faq-intro {
      padding: 20px;
      font-size: 1rem;
    }
    .info-card {
      padding: 20px;
    }
    summary {
      font-size: 1rem;
      padding: 15px;
    }
    .grand-cta .btn-group {
      flex-direction: column;
    }
    .grand-cta .btn {
      width: 100%;
    }
  }

  @media (max-width: 390px) {
    h1 {
      font-size: 1.8rem;
    }
    .faq-section-title {
      font-size: 1.5rem;
    }
    .nav-grid a {
      width: 100%;
      text-align: center;
    }
  }


/* 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; }