/* ==========================================================================
           SECTION 4: 修正后的硬核技术规格表 (对齐原始数据)
           ========================================================================== */
        .specs-section {
            width: 100%;
            max-width: 1440px;
            margin: 0 auto;
            padding: 100px 40px;
            background-color: #f8fafc;
        }

        .specs-container {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 60px;
            align-items: flex-start;
        }

        .specs-visual {
            position: sticky;
            top: 40px;
            width: 100%;
        }

        .specs-image-box {
            width: 100%;
            height: auto;
            aspect-ratio: 3 / 2;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05);
            margin-bottom: 30px;
        }

        .specs-image-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .material-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .feature-tag {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            padding: 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 500;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .feature-tag strong {
            color: var(--brand-blue);
            font-size: 16px;
        }

        .specs-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

        .specs-description {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 40px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
        }

        .specs-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 15px;
            min-width: 600px;
        }

        .specs-table th {
            background-color: #f1f5f9;
            color: var(--text-dark);
            font-weight: 700;
            padding: 16px 20px;
            border-bottom: 2px solid var(--border-color);
            text-transform: uppercase;
            font-size: 12px;
            letter-spacing: 0.5px;
        }

        .specs-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-muted);
            font-weight: 500;
        }

        .specs-table tbody tr:last-child td {
            border-bottom: none;
        }

        .specs-table tbody tr:hover td {
            background-color: #f8fafc;
            color: var(--text-dark);
        }

        .model-highlight {
            color: var(--brand-blue);
            font-weight: 700;
        }

        /* ==========================================================================
           SECTION 5: 核心应用场景与 B2B 高转化询盘表单 (Desire & Action)
           ========================================================================== */
        .conversion-section {
            width: 100%;
            max-width: 1440px;
            margin: 0 auto;
            padding: 100px 40px;
            background-color: #ffffff;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: flex-start;
        }

        /* 左侧：定制化颜色与全场景营销文案 */
        .scenarios-panel h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 24px;
        }

        .scenario-group {
            margin-bottom: 35px;
        }

        .scenario-group h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-blue);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .scenario-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .scenario-list li {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .scenario-list li::before {
            content: "•";
            color: var(--brand-blue);
            font-size: 20px;
            font-weight: bold;
        }

        /* 颜色定制器 UI 展示（吸引买家视觉停留） */
        .color-customizer {
            background-color: #f8fafc;
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-top: 40px;
        }

        .color-customizer p {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .color-swatches {
            display: flex;
            gap: 12px;
        }

        .swatch {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 2px solid #ffffff;
            box-shadow: 0 0 0 1px #cbd5e1;
            cursor: pointer;
            transition: transform 0.2s;
        }

        .swatch:hover {
            transform: scale(1.15);
        }

        .swatch.blue { background-color: #0066cc; }
        .swatch.yellow { background-color: #fbbf24; }
        .swatch.grey { background-color: #64748b; }
        .swatch.custom { background: linear-gradient(45deg, #f43f5e, #3b82f6, #10b981); }

        /* 右侧：精密的 B2B 询盘捕获系统 */
        .inquiry-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.08);
        }

        .inquiry-card h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .inquiry-card p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 30px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-group label {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-dark);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #cbd5e1;
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--text-dark);
            background-color: #ffffff;
            transition: border-color 0.2s;
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            border-color: var(--brand-blue);
        }

        .btn-submit {
            width: 100%;
            background-color: var(--brand-blue);
            color: #ffffff;
            border: none;
            padding: 16px;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background-color 0.2s;
            box-shadow: 0 4px 12px rgba(0, 102, 204, 0.2);
        }

        .btn-submit:hover {
            background-color: var(--brand-hover);
        }

        .form-footer-tip {
            font-size: 12px;
            color: #94a3b8;
            text-align: center;
            margin-top: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        /* ==========================================================================
           SECTION 6: 严谨的 B2B 常见问题解答矩阵 (Trust & QA)
           ========================================================================== */
        .faq-section {
            width: 100%;
            max-width: 1440px;
            margin: 0 auto;
            padding: 100px 40px;
            background-color: #f8fafc;
            border-top: 1px solid var(--border-color);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 50px;
        }

        .faq-item {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-md);
        }

        .faq-item h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }

        .faq-item h4::before {
            content: "Q:";
            color: var(--brand-blue);
            font-weight: 800;
        }

        .faq-item p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.6;
            padding-left: 24px;
        }

        /* 响应式媒体查询适配 */
        @media (max-width: 1100px) {
            .specs-container, .conversion-section, .faq-grid {
                grid-template-columns: 1fr;
                gap: 50px;
            }
            .form-group.full-width-mobile {
                grid-column: span 2;
            }
            .specs-visual {
                position: relative;
                top: 0;
            }
        }

        @media (max-width: 768px) {
            .specs-section, .conversion-section, .faq-section {
                padding: 60px 24px;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group {
                grid-column: span 2 !important;
            }
            .inquiry-card {
                padding: 24px;
            }
        }