/* ----- 完全独立模块 – 不影响外部页面布局，防止左右滚动 ----- */
        .network-module {
            display: block;
            font-family: 'Inter', 'Segoe UI', Roboto, system-ui, sans-serif;
            max-width: 100%;
            width: 100%;
            background: transparent;
            line-height: 1.5;
            color: #1a2b3c;
            overflow-x: hidden;
        }

        .network-module * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            max-width: 100%;
        }

        .service-card {
            background: white;
            border-radius: 2rem;
            box-shadow: 0 25px 45px -12px rgba(0, 0, 0, 0.1), 0 2px 0 0 rgba(199, 36, 177, 0.2);
            padding: 2rem 1.5rem;
            border: 1px solid rgba(199, 36, 177, 0.2);
            position: relative;
            overflow-x: hidden;
            transition: box-shadow 0.2s;
            width: 100%;
        }
        .service-card:hover {
            box-shadow: 0 30px 55px -15px rgba(199, 36, 177, 0.2), 0 2px 0 0 #c724b1;
        }

        /* 背景水印音符 */
        .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; }

        /* 区域标题 */
        .section-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #c724b1;
            margin: 1.8rem 0 1rem 0;
            padding-left: 0.5rem;
            border-left: 4px solid #c724b1;
        }
        .section-title:first-of-type {
            margin-top: 0;
        }

        /* 标题区 */
        .title-section {
            text-align: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid rgba(199, 36, 177, 0.2);
        }
        .title-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }
        .title-section .sub {
            font-size: 0.9rem;
            color: #c724b1;
        }

        /* 开场白 */
        .intro-block {
            background: linear-gradient(135deg, #fef5fc, #fbf0f9);
            border-radius: 1.2rem;
            padding: 1rem 1.2rem;
            margin-bottom: 1.5rem;
            text-align: center;
            border: 1px solid rgba(199, 36, 177, 0.3);
        }
        .intro-block p {
            font-size: 0.9rem;
            color: #2c3e50;
            margin-bottom: 0.3rem;
        }
        .intro-block strong {
            color: #c724b1;
        }

        /* 流程表格 - 防止溢出 */
        .process-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            background: white;
            border-radius: 1rem;
            overflow: hidden;
            border: 1px solid rgba(199, 36, 177, 0.2);
            display: table;
            table-layout: fixed;
        }
        .process-table th, .process-table td {
            padding: 0.8rem 0.8rem;
            text-align: left;
            border-bottom: 1px solid rgba(199, 36, 177, 0.1);
            font-size: 0.85rem;
            word-break: break-word;
        }
        .process-table th {
            background: #faf5fc;
            color: #c724b1;
            font-weight: 600;
        }
        .process-table td {
            color: #2c3e50;
        }
        .process-table tr:last-child td,
        .process-table tr:last-child th {
            border-bottom: none;
        }

        /* 线缆类型网格 */
        .cable-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
            margin: 1.2rem 0;
        }
        .cable-card {
            background: linear-gradient(145deg, #fff6fe, #fef0fd);
            border-radius: 1rem;
            padding: 1rem 0.6rem;
            text-align: center;
            border: 1px solid rgba(199, 36, 177, 0.2);
            transition: all 0.2s;
        }
        .cable-card:hover {
            border-color: #c724b1;
            transform: translateY(-3px);
        }
        .cable-name {
            font-weight: 700;
            color: #c724b1;
            font-size: 1rem;
            margin-bottom: 0.3rem;
        }
        .cable-desc {
            font-size: 0.75rem;
            color: #2c3e50;
            line-height: 1.4;
        }

        /* 成品特征网格 - 4个卡片，初始透明，动态出现 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
            margin: 1.2rem 0;
        }
        .feature-card {
            background: #faf5fc;
            border-radius: 1rem;
            padding: 1rem 0.6rem;
            text-align: center;
            border: 1px solid rgba(199, 36, 177, 0.2);
            transition: all 0.3s ease;
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .feature-card.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .feature-card:hover {
            border-color: #c724b1;
            background: #fff7fd;
            transform: translateY(-2px);
        }
        .feature-title {
            font-weight: 700;
            color: #c724b1;
            font-size: 0.9rem;
            margin-bottom: 0.3rem;
        }
        .feature-desc {
            font-size: 0.75rem;
            color: #2c3e50;
        }

        /* 服务网格 - 3x2 布局 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.8rem;
            margin: 1.2rem 0;
        }
        .service-chip {
            background: linear-gradient(145deg, #fff6fe, #fef0fd);
            border-radius: 2rem;
            padding: 0.6rem 0.3rem;
            text-align: center;
            border: 1px solid rgba(199, 36, 177, 0.2);
            font-size: 0.75rem;
            font-weight: 500;
            color: #c724b1;
            transition: all 0.2s;
        }
        .service-chip:hover {
            border-color: #c724b1;
            transform: translateY(-2px);
        }

        /* CTA区块 */
        .cta-block {
            background: linear-gradient(135deg, #fef5fc, #fbf0f9);
            border-radius: 1.5rem;
            padding: 0.8rem 1rem;
            margin: 1.5rem 0 1rem;
            text-align: center;
            border: 1px solid rgba(199, 36, 177, 0.3);
        }
        .cta-text {
            font-size: 1rem;
            font-weight: 600;
            color: #c724b1;
        }

        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);
        }

        /* 音符装饰 */
        .network-module .music-note {
            color: #c724b1 !important;
            font-size: 0.8rem;
            font-family: 'Segoe UI', 'Arial Unicode MS', sans-serif;
            display: inline-block;
        }

        @media (max-width: 900px) {
            .cable-grid, .features-grid { grid-template-columns: repeat(2, 1fr); }
            .services-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .service-card { padding: 1.2rem; }
            .title-section h2 { font-size: 1.3rem; }
            .bg-note-1, .bg-note-2, .bg-note-3 { display: none; }
            .process-table th, .process-table td { font-size: 0.75rem; padding: 0.5rem; }
        }
        @media (max-width: 550px) {
            .cable-grid, .features-grid, .services-grid { grid-template-columns: 1fr; }
        }