/* ----- 完全独立模块 – 不影响外部页面任何布局 ----- */
        .boundary-module * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .boundary-module {
            display: block;
            font-family: 'Inter', 'Segoe UI', Roboto, system-ui, sans-serif;
            max-width: 1280px;
            margin: 2rem auto;
            background: transparent;
            line-height: 1.5;
            color: #1a2b3c;
        }

        /* 主卡片 — 用边框和间距营造“边界”感 */
        .boundary-card {
            background: white;
            border-radius: 2rem;
            box-shadow: 0 25px 45px -15px rgba(199, 36, 177, 0.15);
            padding: 2.5rem 2.2rem;
            border: 2px solid #c724b1;
            position: relative;
            transition: box-shadow 0.2s;
        }

        /* 四角几何标记 — 强化边界视觉 */
        .corner {
            position: absolute;
            width: 40px;
            height: 40px;
            border-color: #c724b1;
            opacity: 0.5;
            pointer-events: none;
        }
        .corner-tl {
            top: 15px;
            left: 15px;
            border-top: 3px solid #c724b1;
            border-left: 3px solid #c724b1;
        }
        .corner-tr {
            top: 15px;
            right: 15px;
            border-top: 3px solid #c724b1;
            border-right: 3px solid #c724b1;
        }
        .corner-bl {
            bottom: 15px;
            left: 15px;
            border-bottom: 3px solid #c724b1;
            border-left: 3px solid #c724b1;
        }
        .corner-br {
            bottom: 15px;
            right: 15px;
            border-bottom: 3px solid #c724b1;
            border-right: 3px solid #c724b1;
        }

        /* 装饰虚线边界 — 内层视觉边界 */
        .inner-boundary {
            position: absolute;
            top: 25px;
            left: 25px;
            right: 25px;
            bottom: 25px;
            border: 1px dashed rgba(199, 36, 177, 0.25);
            border-radius: 1.5rem;
            pointer-events: none;
        }

        /* 音符装饰 — 轻微点缀，不破坏边界感 */
        .note-deco {
            position: absolute;
            font-size: 3.5rem;
            color: rgba(199, 36, 177, 0.04);
            pointer-events: none;
            font-family: 'Segoe UI', 'Arial Unicode MS', sans-serif;
        }
        .note-1 { bottom: 10px; right: 20px; transform: rotate(5deg); }
        .note-2 { top: 50px; left: 20px; transform: rotate(-8deg); font-size: 2.8rem; }

        /* 主色调 */
        .accent { color: #c724b1; }
        .accent-border { border-left: 4px solid #c724b1; padding-left: 1rem; }

        /* 标题区 */
        .boundary-module h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #1a2b3c;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .boundary-module h1::before {
            content: '𝄞';
            font-size: 2rem;
            color: #c724b1;
        }

        /* 更新后的副标题 — 吸引同频客户 */
        .subhead {
            font-size: 1rem;
            color: #c724b1;
            margin-bottom: 2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid rgba(199, 36, 177, 0.3);
            display: inline-block;
            font-style: italic;
        }

        /* 内容区块 — 每个边界条款用独立的视觉区块 */
        .boundary-section {
            margin: 1.8rem 0;
            padding: 0.2rem 0;
        }

        .boundary-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #c724b1;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .boundary-title::before {
            content: '♪';
            font-size: 1rem;
            color: #c724b1;
        }

        .boundary-module p {
            margin-bottom: 0.6rem;
            color: #2c3e50;
            line-height: 1.65;
        }

        /* 高亮强调 */
        .highlight {
            background: rgba(199, 36, 177, 0.08);
            padding: 0.1rem 0.2rem;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 网格布局用于能力列表 */
        .capability-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 0.8rem;
            margin: 1rem 0 0.5rem;
        }
        .capability-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            color: #2c3e50;
        }
        .capability-item::before {
            content: '▸';
            color: #c724b1;
            font-weight: 600;
        }

        hr {
            margin: 1.8rem 0;
            border: 0;
            height: 1px;
            background: repeating-linear-gradient(90deg, #c724b1, #c724b1 8px, transparent 8px, transparent 20px);
            opacity: 0.4;
        }

        @media (max-width: 768px) {
            .boundary-card { padding: 1.8rem; }
            .boundary-module h1 { font-size: 1.6rem; }
            .corner { width: 25px; height: 25px; }
            .inner-boundary { top: 15px; left: 15px; right: 15px; bottom: 15px; }
        }