:root{
        --primary:#eab308;
        --accent:#f59e0b;
        --bg:#18181b;
        --text:#fafafa;
        --radius-lg:24px;
        --radius-md:16px;
        --radius-sm:10px;
        --shadow:0 10px 30px -10px rgba(0,0,0,0.3);
        --font-stack: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }
    * { font-family: var(--font-stack); }
    body { background-color: var(--bg); color: var(--text); overflow-x: hidden; }
    .text-primary-brand { color: var(--primary) !important; }
    .bg-primary-brand { background-color: var(--primary) !important; }
    .btn-gold {
        background: linear-gradient(145deg, #eab308, #f59e0b);
        border: none; border-radius: 60px; padding: 12px 32px; font-weight: 700; color: #1c1c1e;
        box-shadow: 0 4px 20px rgba(234,179,8,0.25); position: relative; overflow: hidden; transition: 0.3s;
    }
    .btn-gold::after {
        content: ''; position: absolute; top: -40%; left: -60%; width: 40%; height: 200%; transform: rotate(20deg);
        background: rgba(255,255,255,0.6); filter: blur(8px); opacity: 0; transition: 0.4s;
    }
    .btn-gold:hover::after { left: 120%; opacity: 1; }
    .btn-gold:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(234,179,8,0.35); }
    .card-custom { background: #202024; border-radius: var(--radius-md); border: 1px solid #2d2d31; box-shadow: var(--shadow); }
    .hero-stat {
        font-size: 4.8rem; font-weight: 900; line-height: 1; letter-spacing: -0.03em; color: var(--primary);
    }
    .hero-stat-label { font-size: 1.2rem; font-weight: 500; color: #c0c0c4; }
    .section-title { font-size: 2.4rem; font-weight: 800; letter-spacing: -0.02em; }
    .section-sub { font-weight: 400; color: #b0b0b5; }
    .accordion-button:not(.collapsed) {
        background-color: #2a2a2e; color: var(--primary); box-shadow: none;
    }
    .accordion-button:focus { box-shadow: 0 0 0 2px rgba(234,179,8,0.3); }
    .accordion-item { background-color: #1f1f23; border: 1px solid #2c2c30; border-radius: var(--radius-md) !important; overflow: hidden; }
    .feature-icon { background: rgba(234,179,8,0.12); width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; color: var(--primary); }
    .list-unstyled-custom { list-style: none; padding-left: 0; }
    .nav-link-custom { color: #d0d0d5; font-weight: 500; margin-right: 1.2rem; border-radius: 40px; padding: 0.4rem 0.9rem !important; }
    .nav-link-custom:hover, .nav-link-custom.active { color: var(--primary); background: rgba(234,179,8,0.08); }
    .footer-links a { color: #9a9aa0; text-decoration: none; margin-right: 20px; }
    .footer-links a:hover { color: var(--primary); }
    .obs-animate { opacity: 0; transform: translateY(30px); transition: opacity 0.7s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.6, 0.2, 1); }
    .obs-animate.revealed { opacity: 1; transform: translateY(0); }
    .table-compare { border-collapse: separate; border-spacing: 0 12px; }
    .table-compare th, .table-compare td { background: #1e1e22; padding: 16px 20px; border-top: 1px solid #2c2c30; border-bottom: 1px solid #2c2c30; }
    .table-compare th:first-child { border-radius: 16px 0 0 16px; }
    .table-compare th:last-child { border-radius: 0 16px 16px 0; }
    .table-compare td:first-child { border-radius: 16px 0 0 16px; }
    .table-compare td:last-child { border-radius: 0 16px 16px 0; }
    .big-number { font-size: 2rem; font-weight: 800; }
    .badge-brand { background: rgba(234,179,8,0.2); color: var(--primary); padding: 4px 12px; border-radius: 40px; }

/* --- 子页面追加 --- */
/* 确保 Bootstrap 组件不破坏深色主题（但本页尽量少用 .card 等） */
        .contact-card, .contact-card .card-body {
            background: #1c1c1f;
            color: var(--text);
            border: 1px solid rgba(234,179,8,0.15);
            border-radius: var(--radius-md);
        }
.form-control, .form-select {
            background: rgba(0,0,0,0.35);
            border: 1px solid rgba(234,179,8,0.25);
            color: var(--text);
        }
.form-control:focus, .form-select:focus {
            background: rgba(0,0,0,0.5);
            border-color: var(--primary);
            color: var(--text);
            box-shadow: 0 0 0 0.2rem rgba(234,179,8,0.15);
        }
.form-control::placeholder {
            color: rgba(255,255,255,0.45);
        }
.form-label {
            color: var(--text);
            font-weight: 500;
        }
.contact-icon {
            width: 44px;
            height: 44px;
            background: rgba(234,179,8,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
        }
.list-unstyled-custom li {
            margin-bottom: 0.5rem;
        }
.divider-light {
            border-top: 1px solid rgba(255,255,255,0.06);
            margin: 2rem 0;
        }

/* --- 子页面追加 --- */
.privacy-hero {
            padding: 6rem 0 3rem;
            background: radial-gradient(circle at 20% 20%, rgba(234,179,8,0.06) 0%, transparent 50%), radial-gradient(circle at 80% 80%, rgba(245,158,11,0.04) 0%, transparent 40%);
        }
.privacy-hero h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text);
        }
.privacy-hero h1 .brand-highlight {
            color: var(--primary);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
.privacy-hero .lead {
            color: rgba(250,250,250,0.7);
            font-size: 1.1rem;
            max-width: 680px;
            margin: 1.5rem auto 0;
        }
.privacy-section {
            padding: 3.5rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
.privacy-section:last-of-type {
            border-bottom: none;
        }
.privacy-section .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(234,179,8,0.12);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.35rem 1rem;
            border-radius: 50px;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }
.privacy-section h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: var(--text);
            letter-spacing: -0.01em;
        }
.privacy-section h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.75rem;
            margin-bottom: 0.75rem;
            color: var(--primary);
        }
.privacy-section p, .privacy-section li {
            color: rgba(250,250,250,0.75);
            font-size: 0.98rem;
        }
.privacy-section ul {
            padding-left: 1.25rem;
        }
.privacy-section li {
            margin-bottom: 0.6rem;
            position: relative;
        }
.privacy-section li::marker {
            color: var(--primary);
        }
.info-card {
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.07);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            height: 100%;
            transition: all 0.3s ease;
        }
.info-card:hover {
            background: rgba(255,255,255,0.05);
            border-color: rgba(234,179,8,0.3);
            transform: translateY(-3px);
        }
.info-card .icon-wrap {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(234,179,8,0.1);
            color: var(--primary);
            font-size: 1.3rem;
            border-radius: var(--radius-sm);
            margin-bottom: 1rem;
        }
.info-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.5rem;
        }
.info-card p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }
.update-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(245,158,11,0.1);
            color: var(--accent);
            font-weight: 500;
            font-size: 0.85rem;
            padding: 0.3rem 0.9rem;
            border-radius: 50px;
            border: 1px solid rgba(245,158,11,0.2);
        }
.footer {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 3rem 0;
            background: rgba(0,0,0,0.2);
        }
.footer a {
            color: rgba(250,250,250,0.6);
            text-decoration: none;
            transition: color 0.3s;
        }
.footer a:hover {
            color: var(--primary);
        }
.footer .brand-name {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text);
        }

/* --- 子页面追加 --- */
/* 覆盖Bootstrap组件默认白底黑字，确保与深色主题一致 */
        .card, .card-body, .card-title, .card-text, .card-header, .card-footer,
        .form-control, .form-select, .form-label, .input-group-text,
        .table, .list-group-item, .accordion-item, .accordion-button, .accordion-body,
        .modal-content, .modal-header, .modal-body, .dropdown-menu, .dropdown-item,
        .nav-link, .navbar, .navbar-brand, .btn-light, .btn-outline-* {
            background-color: transparent;
            color: var(--text);
            border-color: var(--border-color, rgba(255,255,255,0.15));
        }
/* 链接颜色统一 */
        a {
            color: var(--primary);
        }
/* 自定义卡片覆盖 */
        .card-custom {
            background: var(--card-bg, rgba(255,255,255,0.04));
            border: 1px solid var(--border-color, rgba(255,255,255,0.1));
            border-radius: var(--radius-md);
            padding: 1.5rem;
        }
/* 列表样式 */
        .list-unstyled-custom li {
            margin-bottom: 0.6rem;
        }
/* 页脚链接 */
        .footer-links a {
            margin-right: 1.2rem;
            color: var(--text);
            opacity: 0.8;
        }
/* 高亮当前导航 */
        .nav-link-custom.active {
            color: var(--primary) !important;
        }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }