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

        .hdi-module {
            display: block;
            font-family: 'Inter', 'Segoe UI', Roboto, system-ui, sans-serif;
            max-width: 100%;
            background: transparent;
            line-height: 1.5;
            color: #1a2b3c;
        }

        .hdi-card {
            background: white;
            border-radius: 2rem;
            box-shadow: 0 25px 45px -15px rgba(199, 36, 177, 0.2);
            padding: 2rem 2rem;
            border: 1px solid rgba(199, 36, 177, 0.2);
            position: relative;
            overflow: hidden;
        }

        /* 背景音符装饰 */
        .bg-note {
            position: absolute;
            font-size: 5rem;
            color: rgba(199, 36, 177, 0.03);
            pointer-events: none;
            font-family: 'Segoe UI', 'Arial Unicode MS', sans-serif;
            z-index: 0;
        }
        .bg-note-1 { top: 2%; left: -1%; transform: rotate(-8deg); }
        .bg-note-2 { bottom: 3%; right: -2%; transform: rotate(6deg); }
        .bg-note-3 { top: 20%; right: 5%; transform: rotate(10deg); font-size: 3.5rem; }

        /* 主色调 */
        .accent { color: #c724b1; }

        /* 头部概念 */
        .concept {
            text-align: center;
            margin-bottom: 1.8rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid rgba(199, 36, 177, 0.2);
            position: relative;
            z-index: 2;
        }
        .concept p {
            font-size: 1rem;
            color: #c724b1;
            font-weight: 500;
        }

        /* 特性网格 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.2rem;
            margin: 1.8rem 0;
            position: relative;
            z-index: 2;
        }
        .feature-item {
            background: #faf5fc;
            border-radius: 1.2rem;
            padding: 1rem 0.8rem;
            text-align: center;
            border: 1px solid rgba(199, 36, 177, 0.2);
            transition: all 0.2s;
        }
        .feature-item:hover {
            border-color: #c724b1;
            transform: translateY(-2px);
            box-shadow: 0 8px 16px -8px rgba(199, 36, 177, 0.15);
        }
        .feature-title {
            font-size: 1rem;
            font-weight: 700;
            color: #c724b1;
            margin-bottom: 0.4rem;
        }
        .feature-desc {
            font-size: 0.85rem;
            color: #2c3e50;
            line-height: 1.4;
        }

        /* 能力标签 */
        .capability-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.8rem;
            margin: 1.5rem 0;
            position: relative;
            z-index: 2;
        }
        .tag {
            background: linear-gradient(145deg, #fff6fe, #fef0fd);
            border: 1px solid #c724b1;
            border-radius: 60px;
            padding: 0.4rem 1.2rem;
            font-size: 0.85rem;
            font-weight: 500;
            color: #1e293b;
        }
        .tag-highlight {
            background: #c724b1;
            color: white;
            border-color: #a01d8a;
        }

        /* 接受范围 */
        .scope {
            text-align: center;
            margin: 1.2rem 0;
            font-size: 0.9rem;
            color: #2c3e50;
            position: relative;
            z-index: 2;
        }
        .scope strong {
            color: #c724b1;
        }

        /* CTA 区块 (无按钮) */
        .cta-block {
            background: linear-gradient(135deg, #fef5fc, #fbf0f9);
            border-radius: 1.5rem;
            padding: 1rem 1.2rem;
            margin: 1.5rem 0 1rem;
            text-align: center;
            border: 1px solid rgba(199, 36, 177, 0.3);
            position: relative;
            z-index: 2;
        }
        .cta-highlight {
            font-size: 1.1rem;
            font-weight: 700;
            color: #c724b1;
        }
        .cta-desc {
            font-size: 0.85rem;
            color: #2c3e50;
            margin-top: 0.3rem;
        }

        hr {
            margin: 1rem 0;
            border: 0;
            height: 1px;
            background: repeating-linear-gradient(90deg, #c724b1, #c724b1 6px, transparent 6px, transparent 20px);
            opacity: 0.3;
        }

        .footer-line {
            text-align: center;
            color: #c724b1;
            font-size: 0.75rem;
            margin-top: 1rem;
            padding-top: 0.8rem;
            border-top: 1px dashed rgba(199, 36, 177, 0.3);
        }

        @media (max-width: 640px) {
            .hdi-card { padding: 1.5rem; }
            .features-grid { grid-template-columns: 1fr; }
            .capability-tags { gap: 0.5rem; }
            .tag { font-size: 0.75rem; padding: 0.3rem 0.8rem; }
            .bg-note-1, .bg-note-2, .bg-note-3 { display: none; }
        }