/* 彻底干掉主题自带的默认 margin 和 padding，取消全局深色背景 */
        body, html {
            background-color: #ffffff;
            margin: 0;
            padding: 0;
        }
        .site-content, #content, .content-area, #primary, #main, .site-main {
            margin: 0; 
            padding: 0;
            background-color: transparent;
        }
        .ast-container, .ast-builder-grid-row-container {
            padding: 0; 
            max-width: 100%;
            margin: 0;
        }
        .site-header, .site-footer {
            margin-bottom: 0;
            margin-top: 0;
        }

        :root {
            --xb-bg-main: #ffffff; 
            --xb-bg-panel: #ffffff;
            --xb-bg-alt: #f8fafc;
            --xb-blue-brand: #1E90FF; 
            --xb-blue-light: #3b82f6;
            --xb-blue-dark: #1e3a8a;
            --xb-green: #10b981;
            --xb-red: #ef4444; 
            --xb-text-main: #334155;     /* 深灰正文 */
            --xb-text-title: #0f172a;    /* 接近纯黑的标题 */
            --xb-text-muted: #64748b;    /* 浅灰辅助文字 */
            --xb-border: #e2e8f0;        /* 极浅灰边框 */
            --xb-radius: 12px;
        }

        /* 独立控制的 1000px 居中大外层 */
        .my-custom-wrapper {
            max-width: 1000px;
            margin: 0 auto;
            padding: 0 15px;
            width: 100%;
            box-sizing: border-box;
            background-color: var(--xb-bg-main);
            color: var(--xb-text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.8;
            overflow-x: hidden;
            padding-bottom: 0px;
        }
        @media (min-width: 1024px) {
            .my-custom-wrapper { padding: 0; }
        }

        .my-custom-wrapper * { box-sizing: border-box; }
        .my-custom-wrapper h1, .my-custom-wrapper h2, .my-custom-wrapper h3, .my-custom-wrapper h4 { 
            color: var(--xb-text-title); 
            margin-top: 0; 
            font-weight: 800; 
            line-height: 1.4;
        }
        .my-custom-wrapper a { color: var(--xb-blue-light); text-decoration: none; transition: 0.2s ease; border-bottom: 1px solid transparent; }
        .my-custom-wrapper a:hover { color: var(--xb-blue-dark); border-bottom-color: var(--xb-blue-dark); }

        /* 首屏 Hero (深色背景反白文字，突出视觉焦点) */
        .xb-hero { 
            background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%); 
            padding: 45px 0; 
            border-radius: var(--xb-radius);
            margin-bottom: 35px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(30, 58, 138, 0.15);
        }
        .xb-hero::after {
            content: ''; position: absolute; top: 0; right: 0; bottom: 0; left: 0;
            background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCI+PHBhdGggZD0iTTAgMGgyMHYyMEgweiIgZmlsbD0ibm9uZSIvPjxjaXJjbGUgY3g9IjIiIGN5PSIyIiByPSIyIiBmaWxsPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMDUpIi8+PC9zdmc+') repeat;
            pointer-events: none;
        }
        .xb-hero-grid { display: flex; align-items: center; gap: 40px; padding: 0 40px; position: relative; z-index: 2;}
        
        /* 严格遵守 Logo 尺寸 268*148，去除多余空白 */
        .xb-hero-logo { 
            flex: 0 0 268px; 
            width: 268px;
            height: 148px; 
            background-color: transparent; 
            border-radius: 8px; 
            display: flex; align-items: center; justify-content: center; 
            padding: 0;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.2);
        }
        .xb-hero-logo img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }

        .xb-hero-content { flex: 1; }
        .xb-hero-tag { display: inline-block; background: rgba(16, 185, 129, 0.2); color: #34d399; font-size: 13px; font-weight: bold; padding: 6px 16px; border-radius: 20px; margin-bottom: 15px; border: 1px solid rgba(16, 185, 129, 0.4); }
        .xb-hero h1 { font-size: 34px; line-height: 1.35; margin-bottom: 16px; color: #ffffff; }
        .xb-hero p { font-size: 16px; color: #e2e8f0; margin-bottom: 25px; line-height: 1.6; }

        /* 评分卡 */
        .xb-hero-score { flex: 0 0 140px; text-align: center; background: rgba(255,255,255,0.1); padding: 25px 15px; border-radius: var(--xb-radius); border: 1px solid rgba(255,255,255,0.2); backdrop-filter: blur(5px); }
        .xb-hero-score .score-num { font-size: 48px; font-weight: 900; color: #60a5fa; line-height: 1; margin-bottom: 8px;}
        .xb-hero-score .score-text { font-size: 13px; color: #cbd5e1; font-weight: bold; }
        .xb-hero-score .stars { color: #fbbf24; font-size: 17px; margin-top: 8px; letter-spacing: 2px;}

        /* 按钮重构 */
        .xb-btn-group { display: flex; gap: 15px; flex-wrap: wrap; }
        .xb-btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; border-radius: 8px; font-size: 15px; font-weight: bold; border: none; cursor: pointer; text-align: center; text-decoration: none; transition: all 0.2s; }
        .xb-btn-primary { background-color: var(--xb-blue-light); color: #fff; box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3); }
        .xb-btn-primary:hover { background-color: #2563eb; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4); }
        .xb-btn-outline { background: transparent; border: 1px solid rgba(255,255,255,0.3); color: #fff; }
        .xb-btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }

        /* 内容卡片 (白底模式) */
        .xb-main-layout { display: block; padding: 0 0 20px 0; }
        .xb-card { background: var(--xb-bg-panel); border: 1px solid var(--xb-border); border-radius: var(--xb-radius); padding: 40px; margin-bottom: 35px; box-shadow: 0 4px 20px rgba(0,0,0,0.03); }
        .xb-card-header { border-bottom: 1px solid var(--xb-border); padding-bottom: 15px; margin-bottom: 25px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
        .xb-card-header h2 { font-size: 24px; margin: 0; display: flex; align-items: center; gap: 12px; }
        .xb-card-header h2::before { content: ''; display: block; width: 6px; height: 22px; background-color: var(--xb-blue-light); border-radius: 3px; }

        .xb-text-content { font-size: 16.5px; margin-bottom: 22px; line-height: 1.85; color: var(--xb-text-main); }
        .xb-text-content strong { color: var(--xb-text-title); font-weight: bold; }

        /* 列表样式 */
        .xb-list { list-style: none; padding: 0; margin: 25px 0; }
        .xb-list li { position: relative; padding-left: 28px; margin-bottom: 16px; font-size: 16px; color: var(--xb-text-main); line-height: 1.8;}
        .xb-list li::before { content: '✓'; position: absolute; left: 0; top: 2px; font-size: 15px; color: var(--xb-green); font-weight: bold;}
        .xb-list.xb-list-cons li::before { content: '✕'; color: var(--xb-red); }

        /* 优缺点模块 */
        .xb-pros-cons { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
        .xb-pros-cons .xb-pros, .xb-pros-cons .xb-cons { background: var(--xb-bg-alt); padding: 30px; border-radius: 10px; border: 1px solid var(--xb-border); }
        .xb-pros-cons h4 { font-size: 19px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid #cbd5e1; }
        .xb-pros h4 { color: var(--xb-green); }
        .xb-cons h4 { color: var(--xb-red); }

        /* 信息聚合面板 */
        .xb-info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-bottom: 40px;}
        .xb-info-box { background: var(--xb-bg-alt); border: 1px solid var(--xb-border); padding: 25px 20px; border-radius: var(--xb-radius); text-align: center; transition: transform 0.2s; box-shadow: 0 2px 8px rgba(0,0,0,0.02);}
        .xb-info-box:hover { transform: translateY(-3px); box-shadow: 0 6px 15px rgba(0,0,0,0.05); }
        .xb-info-label { display: block; font-size: 14px; color: var(--xb-text-muted); margin-bottom: 8px; font-weight: bold;}
        .xb-info-value { display: block; font-size: 20px; font-weight: 900; color: var(--xb-text-title); }

        /* 表格样式 */
        .xb-table-wrapper { overflow-x: auto; margin: 30px 0; border-radius: 10px; border: 1px solid var(--xb-border); box-shadow: 0 2px 10px rgba(0,0,0,0.02);}
        .xb-table { width: 100%; border-collapse: collapse; text-align: left; background: #ffffff; font-size: 15.5px; }
        .xb-table th { background: var(--xb-bg-alt); color: var(--xb-text-title); padding: 18px; border-bottom: 2px solid var(--xb-border); white-space: nowrap; font-weight: bold;}
        .xb-table td { padding: 18px; border-bottom: 1px solid var(--xb-border); color: var(--xb-text-main); }
        .xb-table tr:last-child td { border-bottom: none; }
        .xb-table tr:hover { background: #f8fafc; }

        /* 引用总结块 */
        .xb-blockquote { background: #eff6ff; border-left: 5px solid var(--xb-blue-light); padding: 25px 30px; margin: 30px 0; border-radius: 0 10px 10px 0; font-style: normal; color: #1e3a8a; font-size: 16.5px; font-weight: bold; line-height: 1.8;}

        /* 警告块 */
        .xb-alert-danger { background: #fef2f2; border-left: 5px solid var(--xb-red); padding: 25px; border-radius: 0 8px 8px 0; margin: 30px 0; }
        .xb-alert-danger h4 { color: #b91c1c; margin: 0 0 12px 0; font-size: 18px; }
        .xb-alert-danger p { font-size: 15.5px; margin: 0; color: #7f1d1d; line-height: 1.7; }

        /* 利益披露 */
        .f8-affiliate { background-color: var(--xb-bg-alt); color: var(--xb-text-muted); font-size: 13.5px; text-align: center; padding: 14px 20px; border-radius: var(--xb-radius); margin-bottom: 25px; border: 1px solid var(--xb-border); }
        .f8-affiliate a { color: var(--xb-blue-light); border-bottom: 1px solid transparent; margin-left: 5px;}
        .f8-affiliate a:hover { border-bottom-color: var(--xb-blue-light); }

        /* 移动端自适应 */
        @media (max-width: 850px) { 
            .xb-hero-grid { flex-direction: column; text-align: center; gap: 25px; padding: 30px 20px;}
            .xb-hero-logo { flex: 0 0 auto; width: 268px; height: 148px; }
            .xb-hero-score { width: 100%; max-width: 260px; margin: 0 auto; }
            .xb-btn-group { justify-content: center; width: 100%; flex-direction: column; }
            .xb-btn { width: 100%; }
            .xb-card { padding: 25px 20px; }
            .xb-pros-cons { grid-template-columns: 1fr; }
        }