/* 独立模块——恢复原本#0D7C90装饰色，仅替换✔️为♪并使用#c724b1 */
        .ecu-module-restored {
            --primary: #0D7C90;               /* 恢复原始主色调 */
            --accent-music: #c724b1;           /* 音乐符号专用紫色 */
            --border-light: #e2e9f0;
            --text-dark: #1a2b3c;
            --text-soft: #2f4052;
            --bg-card: #ffffff;
            max-width: 1200px;
            margin: 0 auto;
            padding: 28px 24px 36px 24px;
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            background: transparent;
            box-sizing: border-box;
            color: var(--text-dark);
            position: relative;
        }

        .ecu-module-restored *,
        .ecu-module-restored *::before,
        .ecu-module-restored *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        /* 极淡网格背景（体系感）- 使用恢复的主色调 */
        .ecu-module-restored .grid-bg {
            position: relative;
            z-index: 1;
        }
        .ecu-module-restored .grid-bg::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(to right, var(--primary) 0.5px, transparent 0.5px),
                linear-gradient(to bottom, var(--primary) 0.5px, transparent 0.5px);
            background-size: 36px 36px;
            opacity: 0.15;                    /* 保持原有的低透明度 */
            pointer-events: none;
            z-index: 0;
        }

        /* 标题区 */
        .ecu-module-restored .title-block {
            position: relative;
            z-index: 3;
            margin-bottom: 36px;
            width: 100%;
        }
        .ecu-module-restored .title-block h1 {
            font-size: 2.2rem;
            font-weight: 500;
            letter-spacing: -0.02em;
            line-height: 1.2;
            color: var(--text-dark);
            margin: 0 0 6px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: baseline;
            gap: 12px;
        }
        .ecu-module-restored .title-block h1 strong {
            font-weight: 600;
            color: var(--primary);             /* 恢复为#0D7C90 */
            border-bottom: 3px solid var(--primary);
            padding-bottom: 2px;
        }

        /* 几何线条装饰 - 恢复主色调 */
        .ecu-module-restored .divider-line {
            height: 2px;
            width: 80px;
            background: var(--primary);         /* 恢复#0D7C90 */
            margin: 18px 0 22px 0;
            position: relative;
            opacity: 0.7;
        }
        .ecu-module-restored .divider-line::after {
            content: '';
            position: absolute;
            right: -8px;
            top: -4px;
            width: 10px;
            height: 10px;
            border-right: 2px solid var(--primary);
            border-top: 2px solid var(--primary);
        }

        /* 开场白段落 - 恢复主色调左边框 */
        .ecu-module-restored .intro-paragraph {
            font-size: 1.06rem;
            color: var(--text-soft);
            line-height: 1.65;
            max-width: 100%;
            background: #f6fafd;
            padding: 18px 22px;
            border-radius: 0 20px 20px 0;
            border-left: 5px solid var(--primary);  /* 恢复#0D7C90 */
            margin: 20px 0 28px 0;
            width: 100%;
        }
        .ecu-module-restored .en-ref {
            display: block;
            font-size: 0.92rem;
            color: #4a637a;
            margin-top: 8px;
            font-weight: 400;
        }

        /* 四列卡片网格 */
        .ecu-module-restored .card-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: 30px 0 40px 0;
            position: relative;
            z-index: 3;
        }

        .ecu-module-restored .std-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 20px;
            padding: 18px 16px 16px 16px;
            border-top: 4px solid var(--primary);   /* 恢复#0D7C90 */
            box-shadow: 0 6px 14px -6px rgba(13,124,144,0.15);
            transition: all 0.15s ease;
            display: flex;
            flex-direction: column;
        }
        .ecu-module-restored .std-card:hover {
            border-color: var(--primary);
        }

        .ecu-module-restored .std-header {
            display: flex;
            align-items: baseline;
            gap: 10px;
            margin-bottom: 16px;
            border-bottom: 1px dashed #cbd8e3;
            padding-bottom: 8px;
        }
        .ecu-module-restored .std-header h2 {
            font-size: 1.7rem;
            font-weight: 550;
            color: var(--primary);              /* 恢复#0D7C90 */
            line-height: 1;
        }
        .ecu-module-restored .std-header .pill {
            background: #edf3f8;
            color: #0D7C90;                      /* 恢复主色调文字 */
            font-size: 0.68rem;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 30px;
            border: 1px solid rgba(13,124,144,0.2);
        }

        .ecu-module-restored .task {
            font-weight: 600;
            font-size: 1rem;
            margin: 4px 0 8px;
        }

        /* 特性列表：仅将✔️改为♪，颜色#c724b1 */
        .ecu-module-restored .feature-list {
            list-style: none;
            padding: 8px 0 10px;
            border-top: 1px dotted #d0dee8;
            border-bottom: 1px dotted #d0dee8;
            margin: 8px 0 10px;
            font-size: 0.88rem;
        }
        .ecu-module-restored .feature-list li {
            padding: 4px 0 4px 22px;
            position: relative;
        }
        .ecu-module-restored .feature-list li::before {
            content: '♪';                   /* 音乐符号 */
            color: var(--accent-music);      /* #c724b1 */
            font-weight: 500;
            font-size: 1.1rem;
            position: absolute;
            left: 0;
            top: 2px;
        }

        .ecu-module-restored .role-box {
            background: #f5fafd;
            padding: 10px 12px;
            border-radius: 12px;
            font-size: 0.88rem;
            color: #1c3849;
            margin: 12px 0 12px;
            line-height: 1.45;
            border-left: 3px solid var(--primary);   /* 恢复#0D7C90 */
        }
        .ecu-module-restored .example {
            background: #f0f5fa;
            padding: 8px 12px;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #0D7C90;                          /* 恢复主色调 */
            border: 1px solid #cbdbe9;
            margin-top: 6px;
        }

        /* 图片装饰行 - 恢复主色调 */
        .ecu-module-restored .graphic-row {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin: 30px 0 32px;
        }
        .ecu-module-restored .graphic-item {
            flex: 1 1 200px;
            background: #f6fbfe;
            border: 1px solid #c9ddee;
            border-radius: 28px;
            padding: 18px 10px 10px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .ecu-module-restored .graphic-item svg {
            width: 100%;
            max-height: 70px;
            stroke: var(--primary);           /* 恢复#0D7C90 */
            stroke-width: 1.5;
        }
        .ecu-module-restored .graphic-caption {
            font-size: 0.8rem;
            color: #0D7C90;                    /* 恢复主色调 */
            margin-top: 10px;
            border-top: 1px dashed #a0bed6;
            padding-top: 8px;
            width: 100%;
            text-align: center;
        }

        /* 应用场景卡片 */
        .ecu-module-restored .scene-container {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin: 40px 0 20px;
        }
        .ecu-module-restored .scene-item {
            flex: 1 1 260px;
            background: #ffffff;
            border-radius: 24px;
            border: 1px solid #d6e2ed;
            padding: 22px 20px 20px;
            box-shadow: 0 6px 16px -8px rgba(13,124,144,0.12);
            position: relative;
        }
        .ecu-module-restored .scene-item .scene-head {
            font-size: 1.4rem;
            font-weight: 550;
            color: var(--primary);             /* 恢复#0D7C90 */
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .ecu-module-restored .scene-item .scene-head span {
            background: #ecf3f9;
            color: var(--primary);              /* 恢复主色调 */
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 30px;
        }
        .ecu-module-restored .scene-desc {
            color: #1d3647;
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 20px;
        }
        .ecu-module-restored .scene-tag {
            background: #f2f6fc;
            padding: 12px 16px;
            border-radius: 18px;
            color: #1e3d4f;
            font-size: 0.9rem;
            border-left: 4px solid #c724b1;     /* 紫色小面积点缀 (保留音乐符号专属) */
            font-weight: 450;
        }
        /* 场景内小列表若出现也用♪ */
        .ecu-module-restored .scene-tag::before {
            content: '♪ ';
            color: var(--accent-music);
            font-weight: 500;
            font-size: 1.1rem;
            margin-right: 4px;
        }

        /* 底部装饰线 - 恢复主色调 */
        .ecu-module-restored .footer-rhythm {
            display: flex;
            align-items: center;
            gap: 14px;
            margin: 32px 0 8px;
        }
        .ecu-module-restored .footer-rhythm .line-pattern {
            height: 3px;
            flex: 1;
            background: repeating-linear-gradient(90deg, var(--primary) 0px, var(--primary) 8px, transparent 8px, transparent 16px);
            opacity: 0.5;
        }
        .ecu-module-restored .footer-rhythm .music-sign {
            color: var(--accent-music);
            font-size: 1.6rem;
            font-weight: 300;
            line-height: 1;
            letter-spacing: 4px;
        }

        /* 几何角 - 恢复主色调 */
        .ecu-module-restored .corner-accent {
            position: relative;
            height: 12px;
            margin-top: 6px;
        }
        .ecu-module-restored .corner-accent div {
            position: absolute;
            right: 0;
            width: 40px;
            height: 40px;
            border-right: 2px solid var(--primary);
            border-bottom: 2px solid var(--primary);
            opacity: 0.3;
        }