:root{
  --primary:#818cf8;
  --accent:#c084fc;
  --bg:#1e1b4b;
  --text:#e0e7ff;
  --border:rgba(224,231,255,0.25);
  --card-bg:rgba(255,255,255,0.03);
  --muted:#a5b4fc;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{
  background-color:var(--bg);
  color:var(--text);
  font-family:'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight:400;
  letter-spacing:0.01em;
}
a{color:var(--primary);text-decoration:none;}
a:hover{color:var(--accent);}
section{position:relative;scroll-margin-top:80px;}
.container-wide{max-width:1280px;margin:0 auto;padding:0 24px;}
/* 导航 */
.navbar{
  background:rgba(30,27,75,0.75);
  backdrop-filter: blur(12px);
  border-bottom:1px solid var(--border);
  z-index:1000;
  padding:12px 0;
}
.navbar .navbar-brand{
  font-weight:800;
  font-size:1.6rem;
  color:var(--text);
  letter-spacing:-0.5px;
  margin-right:2rem;
}
.navbar .navbar-brand i{
  color:var(--accent);
  margin-right:6px;
}
.navbar-nav .nav-link{
  color:var(--text);
  font-weight:500;
  margin:0 10px;
  font-size:0.95rem;
  opacity:0.8;
  transition:opacity .2s;
}
.navbar-nav .nav-link:hover{opacity:1;color:var(--accent);}
.navbar-toggler{border-color:var(--border);color:var(--text);}
/* Hero */
.hero{
  min-height:88vh;
  display:flex;
  align-items:center;
  position:relative;
  overflow:hidden;
  border-bottom:2px solid var(--border);
  background: radial-gradient(circle at 20% 20%, rgba(192,132,252,0.15), transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(129,140,248,0.2), transparent 50%);
}
.hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200" opacity="0.05"><path d="M70 30 L85 60 L120 65 L95 90 L100 125 L70 105 L40 125 L45 90 L20 65 L55 60 Z" fill="%23c084fc"/><circle cx="140" cy="140" r="18" fill="%23818cf8"/><circle cx="60" cy="160" r="8" fill="%23c084fc"/></svg>');
  background-size:180px;
  background-position:center;
  will-change:transform;
}
.hero .container-wide{position:relative;z-index:2;}
.hero h1{
  font-size:3.8rem;
  font-weight:900;
  line-height:1.15;
  letter-spacing:-1px;
  max-width:800px;
  margin-bottom:24px;
  color:var(--text);
  text-shadow:0 0 30px rgba(192,132,252,0.2);
}
.hero h1 .accent{color:var(--accent);}
.hero .subhead{
  font-size:1.25rem;
  font-weight:400;
  color:var(--muted);
  max-width:640px;
  margin-bottom:40px;
  line-height:1.6;
}
.btn-custom{
  padding:14px 36px;
  border-radius:50px;
  font-weight:600;
  font-size:1rem;
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:2px solid var(--border);
  transition:all .2s;
}
.btn-primary-custom{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
  margin-right:12px;
}
.btn-primary-custom:hover{background:#707df5;color:#fff;transform:translateY(-3px);}
.btn-outline-custom{
  background:transparent;
  color:var(--text);
}
.btn-outline-custom:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px);}
/* 通用分区 */
.section-title{
  font-size:2.2rem;
  font-weight:800;
  letter-spacing:-0.5px;
  margin-bottom:20px;
  display:flex;
  align-items:center;
  gap:12px;
}
.section-title i{color:var(--accent);font-size:1.8rem;}
.section-sub{color:var(--muted);margin-bottom:40px;font-size:1rem;}
/* 波浪分割 */
.divider-wave{
  width:100%;
  height:80px;
  background:var(--bg);
  clip-path:path('M0,40 C300,100 600,0 1000,50 L1000,0 L0,0 Z');
  background:var(--bg);
  border-top:1px solid var(--border);
}
/* 时间线 */
.timeline-wrapper{
  position:relative;
  padding:30px 0;
}
.timeline-wrapper::before{
  content:'';
  position:absolute;
  left:50%;
  top:0;bottom:0;
  width:2px;
  background:var(--border);
  transform:translateX(-50%);
}
.timeline-item{
  display:flex;
  justify-content:flex-start;
  margin-bottom:50px;
  position:relative;
  width:100%;
}
.timeline-item .timeline-content{
  width:45%;
  background:var(--card-bg);
  border:1px solid var(--border);
  padding:20px 24px;
  border-radius:12px;
  transition:all .3s ease;
}
.timeline-item:nth-child(even) .timeline-content{
  margin-left:auto;
}
.timeline-item .timeline-dot{
  position:absolute;
  left:50%;
  top:30px;
  transform:translateX(-50%);
  width:18px;height:18px;
  background:var(--accent);
  border-radius:50%;
  border:4px solid var(--bg);
  box-shadow:0 0 0 2px var(--accent);
}
.timeline-item:hover .timeline-content{
  transform:translateY(-6px);
  background:rgba(129,140,248,0.1);
  box-shadow:0 10px 30px -10px rgba(192,132,252,0.3);
}
.timeline-content h3{font-weight:700;font-size:1.4rem;margin-bottom:10px;color:var(--text);}
.timeline-content p{font-size:0.9rem;color:var(--muted);line-height:1.6;}
.timeline-tag{
  display:inline-block;
  background:rgba(192,132,252,0.15);
  border:1px solid var(--accent);
  padding:2px 12px;
  border-radius:30px;
  font-size:0.7rem;
  font-weight:600;
  color:var(--accent);
  margin-bottom:12px;
}
/* 对比表格 */
.comparison-table{
  width:100%;
  border-collapse:collapse;
  font-size:0.9rem;
  border:1px solid var(--border);
}
.comparison-table th, .comparison-table td{
  padding:16px 20px;
  border:1px solid var(--border);
  text-align:left;
}
.comparison-table th{
  background:rgba(129,140,248,0.2);
  font-weight:700;
  color:var(--text);
  font-size:1rem;
}
.comparison-table td{
  background:var(--card-bg);
}
.comparison-table .fa-check{color:#6ee7b7;}
.comparison-table .fa-xmark{color:#f87171;}
.comparison-table tr:hover td{background:rgba(192,132,252,0.07);}
/* 特色卡片网格 */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:24px;
  margin-top:40px;
}
.feature-card{
  border:1px solid var(--border);
  padding:28px 20px;
  border-radius:14px;
  background:var(--card-bg);
  transition:all .3s ease;
}
.feature-card:hover{
  transform:translateY(-8px);
  box-shadow:0 18px 36px -12px rgba(192,132,252,0.3);
  background:rgba(129,140,248,0.08);
}
.feature-card i{
  font-size:2rem;
  color:var(--accent);
  margin-bottom:16px;
}
.feature-card h4{font-weight:700;font-size:1.15rem;margin-bottom:8px;}
.feature-card p{font-size:0.85rem;color:var(--muted);line-height:1.5;}
/* 编号清单 */
.steps-list{
  counter-reset: step-counter;
  list-style:none;
  padding-left:0;
}
.steps-list li{
  counter-increment: step-counter;
  padding:20px 0 20px 60px;
  position:relative;
  border-bottom:1px solid var(--border);
  font-size:1rem;
  line-height:1.7;
}
.steps-list li::before{
  content:counter(step-counter);
  position:absolute;
  left:0;
  top:18px;
  width:36px;height:36px;
  border:2px solid var(--accent);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  color:var(--accent);
  background:rgba(192,132,252,0.1);
}
.steps-list li strong{color:var(--text);}
/* FAQ */
.faq-item{
  border:1px solid var(--border);
  border-radius:12px;
  margin-bottom:16px;
  background:var(--card-bg);
  overflow:hidden;
}
.faq-question{
  padding:18px 24px;
  font-weight:600;
  font-size:1.05rem;
  display:flex;
  justify-content:space-between;
  align-items:center;
  cursor:pointer;
  background:rgba(129,140,248,0.05);
}
.faq-answer{
  padding:0 24px 20px;
  color:var(--muted);
  font-size:0.9rem;
  line-height:1.7;
}
/* CTA */
.cta-box{
  border:2px solid var(--accent);
  border-radius:20px;
  padding:60px 40px;
  text-align:center;
  background:rgba(192,132,252,0.1);
}
.cta-box h2{font-size:2.5rem;font-weight:800;}
/* 页脚 */
.footer{
  border-top:1px solid var(--border);
  padding:40px 0 20px;
  background:rgba(0,0,0,0.2);
}
.footer .copyright{font-size:0.8rem;color:var(--muted);}
.footer-links a{font-size:0.85rem;margin-right:24px;color:var(--muted);}
.footer-links a:hover{color:var(--accent);}
/* 友链区 */
.friend-links{
  border-top:1px solid var(--border);
  margin-top:40px;
  padding-top:24px;
}
/* 动效 */
.reveal{
  opacity:0;
  transform:translateY(30px);
  transition:opacity .6s ease, transform .6s ease;
}
.reveal.active{
  opacity:1;
  transform:none;
}
/* 响应式 */
@media (max-width:768px){
  .hero h1{font-size:2.4rem;}
  .timeline-wrapper::before{left:20px;}
  .timeline-item .timeline-content{width:100%;margin-left:40px !important;}
  .timeline-item .timeline-dot{left:20px;transform:translateX(-50%);}
  .section-title{font-size:1.8rem;}
}

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
        .about-hero {
            padding: 100px 0 60px;
            text-align: center;
        }
.about-section {
            padding: 50px 0;
            border-bottom: 1px solid var(--border);
        }
.about-section:last-of-type {
            border-bottom: none;
        }
.about-section h2 {
            color: var(--primary);
            margin-bottom: 20px;
            font-weight: 700;
        }
.about-section h3 {
            color: var(--accent);
            font-size: 1.25rem;
            margin-top: 25px;
            margin-bottom: 12px;
            font-weight: 600;
        }
.about-section p {
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 16px;
            opacity: 0.9;
        }
.about-section ul {
            color: var(--text);
            padding-left: 20px;
            margin-bottom: 16px;
        }
.about-section ul li {
            margin-bottom: 8px;
            line-height: 1.7;
        }
.about-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
.about-stat-item {
            text-align: center;
            padding: 20px 30px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            min-width: 140px;
        }
.about-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }
.about-stat-item .stat-label {
            color: var(--muted);
            font-size: 0.9rem;
            margin-top: 4px;
        }
.about-mascot {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 30px;
            margin-top: 40px;
            text-align: center;
        }
.about-mascot i {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
.about-mascot p {
            font-style: italic;
            color: var(--muted);
            margin-bottom: 0;
        }
.about-nav-active {
            color: var(--primary) !important;
            font-weight: 600;
        }
.about-hero { padding: 80px 0 40px; }
.about-stats { gap: 20px; }
.about-stat-item { min-width: 120px; padding: 15px 20px; }

/* --- 子页面追加 --- */
/* 覆盖 Bootstrap 组件默认白底黑字 */
    .card, .card-body { background: var(--card-bg); color: var(--text); border-color: var(--border); }
.card-title { color: var(--text); }
.card-text { color: var(--text); }
.form-control, .form-select { background: rgba(0,0,0,.35); color: var(--text); border-color: var(--border); }
.form-control::placeholder { color: rgba(255,255,255,.45); }
.list-group-item { background: var(--card-bg); color: var(--text); border-color: var(--border); }
.accordion-item { background: var(--card-bg); border-color: var(--border); }
.accordion-button { background: var(--card-bg); color: var(--text); border-color: var(--border); }
.accordion-button:not(.collapsed) { background: rgba(129,140,248,.15); color: var(--text); }
.accordion-button::after { filter: invert(1); }
/* 导航高亮当前页 */
    .nav-link.active { color: var(--primary) !important; font-weight: 600; }
/* 免责声明专属排版 */
    .disclaimer-hero {
      padding: 5rem 0 3rem;
      text-align: center;
    }
.disclaimer-section {
      margin-bottom: 3rem;
    }
.disclaimer-section h2 {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 1.2rem;
      display: flex;
      align-items: center;
      gap: .75rem;
    }
.disclaimer-section h2 i {
      font-size: 1.4rem;
      color: var(--accent);
    }
.disclaimer-section p, .disclaimer-section li {
      color: var(--text);
      line-height: 1.9;
      font-size: .98rem;
    }
.disclaimer-section ul {
      padding-left: 1.2rem;
      margin-top: .8rem;
    }
.disclaimer-section li {
      margin-bottom: .6rem;
    }
.highlight-box {
      background: rgba(129, 140, 248, .08);
      border-left: 4px solid var(--primary);
      padding: 1.2rem 1.5rem;
      border-radius: 0 10px 10px 0;
      margin: 1.5rem 0;
    }
.highlight-box p { margin-bottom: 0; }
.contact-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 1.5rem;
      display: flex;
      align-items: flex-start;
      gap: 1rem;
      margin-top: 1rem;
    }
.contact-card i {
      font-size: 1.5rem;
      color: var(--accent);
      margin-top: .3rem;
    }
.contact-card p { margin-bottom: 0; }
.disclaimer-hero { padding: 3rem 0 2rem; }
.disclaimer-section h2 { font-size: 1.3rem; }

/* --- 子页面追加 --- */
/* 本页专属补充样式 */
    .guide-hero {
      padding: 120px 0 60px;
      text-align: center;
    }
.guide-hero h1 {
      font-size: 2.8rem;
      font-weight: 800;
      margin-bottom: 20px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
.guide-hero p {
      color: var(--muted);
      max-width: 700px;
      margin: 0 auto;
      font-size: 1.1rem;
    }
.guide-section {
      padding: 60px 0;
    }
.guide-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 30px;
      margin-bottom: 24px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
.guide-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 30px rgba(0,0,0,0.3);
    }
.guide-card h3 {
      color: var(--primary);
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
.guide-card h3 i {
      margin-right: 10px;
      color: var(--accent);
    }
.guide-card p, .guide-card li {
      color: var(--text);
      line-height: 1.7;
    }
.guide-card ul, .guide-card ol {
      padding-left: 20px;
      margin-top: 12px;
    }
.guide-card li {
      margin-bottom: 8px;
    }
.step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #fff;
      border-radius: 50%;
      font-weight: 700;
      margin-right: 12px;
      font-size: 0.9rem;
    }
.tip-box {
      background: rgba(129, 140, 248, 0.1);
      border-left: 3px solid var(--primary);
      padding: 16px 20px;
      border-radius: 0 8px 8px 0;
      margin-top: 16px;
    }
.tip-box i {
      color: var(--primary);
      margin-right: 8px;
    }
.table-custom {
      width: 100%;
      color: var(--text);
      border-collapse: separate;
      border-spacing: 0;
      margin-top: 16px;
    }
.table-custom th {
      background: rgba(129, 140, 248, 0.15);
      padding: 12px 16px;
      font-weight: 600;
      color: var(--primary);
      border-bottom: 2px solid var(--primary);
    }
.table-custom td {
      padding: 12px 16px;
      border-bottom: 1px solid var(--border);
      background: var(--card-bg);
    }
.table-custom tr:last-child td {
      border-bottom: none;
    }
.badge-custom {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
    }
.badge-primary {
      background: rgba(129, 140, 248, 0.2);
      color: var(--primary);
    }
.badge-accent {
      background: rgba(192, 132, 252, 0.2);
      color: var(--accent);
    }