/* 深夜石板配色变量 */
    :root {
      --mg-primary: #38bdf8;
      --mg-accent: #a78bfa;
      --mg-bg: #0f172a;
      --mg-text: #e2e8f0;
      --mg-border: rgba(148, 163, 184, 0.15);
      --mg-muted: #94a3b8;
      --mg-card-bg: #1e293b;
      --mg-radius: 8px;
      --mg-shadow: 0 4px 20px rgba(0,0,0,0.3);
    }
    
    body {
      background-color: var(--mg-bg);
      color: var(--mg-text);
      font-family: 'Inter', '思源黑体', 'Source Han Sans CN', 'Noto Sans CJK SC', system-ui, sans-serif;
      line-height: 1.75;
      letter-spacing: 0.2px;
      position: relative;
      overflow-x: hidden;
    }
    
    /* 点阵/细网格背景装饰 */
    body::before {
      content: '';
      position: fixed;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background-image: radial-gradient(circle, rgba(148,163,184,0.08) 1px, transparent 1px);
      background-size: 24px 24px;
      pointer-events: none;
      z-index: 0;
    }
    
    h1, h2, h3, h4, .display-5, .brand-font {
      font-family: 'Inter', '思源宋体', 'Source Han Serif CN', 'Noto Serif CJK SC', serif;
      font-weight: 700;
      letter-spacing: 0.02em;
    }
    
    .navbar {
      background-color: rgba(15, 23, 42, 0.9);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--mg-border);
      z-index: 100;
    }
    
    .navbar-brand {
      font-weight: 800;
      font-size: 1.5rem;
      color: var(--mg-text) !important;
    }
    
    .navbar-brand i {
      color: var(--mg-primary);
      margin-right: 6px;
    }
    
    .nav-link {
      color: var(--mg-text) !important;
      margin: 0 0.35rem;
      font-weight: 500;
      transition: color 0.2s;
    }
    
    .nav-link:hover {
      color: var(--mg-primary) !important;
    }
    
    .btn-outline-mg {
      border: 1px solid var(--mg-primary);
      color: var(--mg-primary);
      border-radius: var(--mg-radius);
    }
    
    .btn-outline-mg:hover {
      background-color: var(--mg-primary);
      color: var(--mg-bg);
    }
    
    .btn-primary-mg {
      background-color: var(--mg-primary);
      border: none;
      color: #0b1422;
      font-weight: 600;
      border-radius: var(--mg-radius);
    }
    
    .btn-primary-mg:hover {
      background-color: #7dd3fc;
      color: #0b1422;
    }
    
    .section-padding {
      padding: 5rem 0;
    }
    
    .badge-mg {
      background: rgba(56, 189, 248, 0.15);
      color: var(--mg-primary);
      border-radius: 20px;
      padding: 0.3rem 0.9rem;
    }
    
    .card-mg {
      background-color: var(--mg-card-bg);
      border: 1px solid var(--mg-border);
      border-radius: var(--mg-radius);
      box-shadow: var(--mg-shadow);
      transition: transform 0.3s ease, border-color 0.3s;
      overflow: hidden;
    }
    
    .card-mg:hover {
      border-color: var(--mg-primary);
      transform: translateY(-4px);
    }
    
    .feature-icon {
      font-size: 2.2rem;
      color: var(--mg-accent);
      background: rgba(167, 139, 250, 0.1);
      width: 60px;
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--mg-radius);
    }
    
    .img-hover {
      overflow: hidden;
      position: relative;
    }
    
    .img-hover img {
      transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }
    
    .img-hover .overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.2) 100%);
      opacity: 0;
      transition: opacity 0.3s;
      display: flex;
      align-items: flex-end;
      padding: 1rem;
      font-weight: 600;
    }
    
    .img-hover:hover img {
      transform: scale(1.08);
    }
    
    .img-hover:hover .overlay {
      opacity: 1;
    }
    
    .accordion-mg .accordion-item {
      background-color: transparent;
      border: 1px solid var(--mg-border);
      border-radius: var(--mg-radius) !important;
      margin-bottom: 1rem;
      overflow: hidden;
    }
    
    .accordion-mg .accordion-button {
      background-color: var(--mg-card-bg);
      color: var(--mg-text);
      font-weight: 600;
      border: none;
      box-shadow: none;
    }
    
    .accordion-mg .accordion-button:not(.collapsed) {
      color: var(--mg-primary);
      background-color: #243044;
    }
    
    .accordion-mg .accordion-button:focus {
      box-shadow: none;
      border-color: rgba(56,189,248,0.3);
    }
    
    .accordion-mg .accordion-body {
      background-color: #182234;
      color: var(--mg-text);
    }
    
    .footer {
      border-top: 1px solid var(--mg-border);
      background-color: #0a0f1a;
    }
    
    .friend-links {
      background-color: #111a2c;
      border-radius: var(--mg-radius);
      padding: 2rem;
      margin-top: 3rem;
    }
    
    .friend-links a {
      color: var(--mg-muted);
      margin-right: 1.5rem;
      transition: color 0.2s;
      text-decoration: none;
    }
    
    .friend-links a:hover {
      color: var(--mg-primary);
    }
    
    /* 滚动淡入动效 */
    .fade-section {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    
    .fade-section.visible {
      opacity: 1;
      transform: translateY(0);
    }
    
    .stagger-card {
      opacity: 0;
      transform: translateY(25px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    
    .stagger-card.visible {
      opacity: 1;
      transform: translateY(0);
    }
    
    @media (max-width: 992px) {
      .navbar-collapse {
        background-color: rgba(15,23,42,0.95);
        padding: 1rem;
        border-radius: var(--mg-radius);
      }
    }

/* --- 子页面追加 --- */
/* 本页专属样式：关于页布局微调 */
    .about-hero { padding: 5rem 0 3rem; }
.about-hero h1 { font-size: 2.6rem; font-weight: 800; }
.about-section { padding: 3rem 0; }
.about-section h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 1.2rem; }
.about-section h2 i { color: var(--mg-accent); margin-right: 0.5rem; }
.about-section p { line-height: 1.8; color: var(--mg-text); opacity: 0.9; }
.value-card { background: var(--mg-card-bg); border: 1px solid var(--mg-border); border-radius: var(--mg-radius); padding: 1.8rem; margin-bottom: 1.5rem; transition: transform .3s, box-shadow .3s; }
.value-card:hover { transform: translateY(-4px); box-shadow: var(--mg-shadow); }
.value-card .icon-box { font-size: 2rem; color: var(--mg-primary); margin-bottom: 0.8rem; }
.value-card h5 { font-weight: 600; margin-bottom: 0.6rem; }
.value-card p { font-size: 0.95rem; opacity: 0.85; }
.timeline-item { position: relative; padding-left: 2rem; margin-bottom: 1.8rem; }
.timeline-item::before { content: ""; position: absolute; left: 0.5rem; top: 0.4rem; width: 12px; height: 12px; background: var(--mg-primary); border-radius: 50%; }
.timeline-item::after { content: ""; position: absolute; left: 0.95rem; top: 1.6rem; width: 2px; height: calc(100% - 0.8rem); background: var(--mg-border); }
.timeline-item:last-child::after { display: none; }
.timeline-item h6 { font-weight: 600; margin-bottom: 0.2rem; }
.timeline-item .date { font-size: 0.85rem; color: var(--mg-muted); margin-bottom: 0.4rem; }
.timeline-item p { font-size: 0.95rem; opacity: 0.85; }
.stat-box { text-align: center; padding: 1.5rem 1rem; }
.stat-box .number { font-size: 2.5rem; font-weight: 800; color: var(--mg-primary); }
.stat-box .label { color: var(--mg-muted); margin-top: 0.3rem; }
.about-hero h1 { font-size: 2rem; }
.about-section h2 { font-size: 1.5rem; }

/* --- 子页面追加 --- */
.privacy-section { background: var(--mg-card-bg); border-radius: var(--mg-radius); padding: 2rem; margin-bottom: 1.5rem; border: 1px solid var(--mg-border); box-shadow: var(--mg-shadow); }
.privacy-section h2 { color: var(--mg-primary); font-size: 1.4rem; font-weight: 700; margin-bottom: 1rem; }
.privacy-section h3 { color: var(--mg-accent); font-size: 1.1rem; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.75rem; }
.privacy-section p, .privacy-section li { color: var(--mg-text); line-height: 1.8; font-size: 0.95rem; }
.privacy-section ul { padding-left: 1.5rem; }
.privacy-section li { margin-bottom: 0.5rem; }
.privacy-icon { color: var(--mg-primary); margin-right: 0.5rem; }
.last-updated { color: var(--mg-muted); font-size: 0.85rem; margin-bottom: 2rem; }
.highlight-box { background: rgba(56, 189, 248, 0.08); border-left: 3px solid var(--mg-primary); padding: 1rem 1.25rem; border-radius: 0 var(--mg-radius) var(--mg-radius) 0; margin: 1.25rem 0; }
.highlight-box p { margin-bottom: 0; color: var(--mg-text); }
.contact-email { color: var(--mg-primary); text-decoration: none; font-weight: 600; }
.contact-email:hover { color: var(--mg-accent); }
.privacy-section { padding: 1.5rem; }
.privacy-section h2 { font-size: 1.2rem; }

/* --- 子页面追加 --- */
.disclaimer-hero {
            padding: 100px 0 60px;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.8) 0%, var(--mg-bg) 100%);
            border-bottom: 1px solid var(--mg-border);
        }
.disclaimer-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--mg-text);
            margin-bottom: 20px;
        }
.disclaimer-hero h1 span {
            color: var(--mg-primary);
        }
.disclaimer-hero p {
            color: var(--mg-muted);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }
.disclaimer-content {
            padding: 60px 0;
        }
.disclaimer-section {
            background: var(--mg-card-bg);
            border: 1px solid var(--mg-border);
            border-radius: var(--mg-radius);
            padding: 35px;
            margin-bottom: 30px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.disclaimer-section:hover {
            transform: translateY(-3px);
            box-shadow: var(--mg-shadow);
        }
.disclaimer-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--mg-primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
.disclaimer-section h2 i {
            color: var(--mg-accent);
            font-size: 1.3rem;
        }
.disclaimer-section p {
            color: var(--mg-text);
            line-height: 1.8;
            margin-bottom: 15px;
        }
.disclaimer-section ul {
            color: var(--mg-text);
            padding-left: 20px;
            margin-bottom: 15px;
        }
.disclaimer-section ul li {
            margin-bottom: 10px;
            line-height: 1.7;
            position: relative;
            padding-left: 5px;
        }
.disclaimer-section ul li::before {
            content: '▸';
            color: var(--mg-accent);
            position: absolute;
            left: -15px;
        }
.disclaimer-section strong {
            color: var(--mg-primary);
        }
.disclaimer-section .highlight-box {
            background: rgba(56, 189, 248, 0.08);
            border-left: 3px solid var(--mg-primary);
            padding: 15px 20px;
            border-radius: 0 var(--mg-radius) var(--mg-radius) 0;
            margin: 20px 0;
        }
.disclaimer-section .highlight-box p {
            margin-bottom: 0;
            color: var(--mg-text);
        }
.contact-cta {
            background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(167, 139, 250, 0.1));
            border: 1px solid var(--mg-border);
            border-radius: var(--mg-radius);
            padding: 30px;
            text-align: center;
            margin-top: 40px;
        }
.contact-cta h3 {
            color: var(--mg-text);
            font-weight: 700;
            margin-bottom: 15px;
        }
.contact-cta p {
            color: var(--mg-muted);
            margin-bottom: 20px;
        }
.disclaimer-hero {
                padding: 70px 0 40px;
            }
.disclaimer-hero h1 {
                font-size: 2rem;
            }
.disclaimer-section {
                padding: 25px;
            }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.table { color:#e2e8f0 !important; border-color:rgba(255,255,255,.12) !important; --bs-table-bg:transparent !important; --bs-table-color:#e2e8f0 !important; }
.accordion-header { background:transparent !important; }