/* ===== 全局变量 – 柔和色调 ===== */
        :root {
            --primary: #5B8DD9;
            /* 柔和蓝 */
            --primary-light: #7BA5E8;
            --primary-dark: #3A6BA8;
            /* 柔和的深蓝 */
            --secondary: #F7F9FC;
            --accent: #FF8A5C;
            /* 暖橙，更柔和 */
            --text: #333333;
            --text-light: #5A6A7A;
            --border: #E8EDF2;
            --shadow: 0 4px 20px rgba(91, 141, 217, 0.10);
            --shadow-hover: 0 12px 40px rgba(91, 141, 217, 0.16);
            --radius: 10px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: 'Roboto', sans-serif;
            line-height: 1.6;
            color: var(--text);
            background: #ffffff;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 标题统一柔和风格 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-family: 'Montserrat', sans-serif;
            font-size: 28px;
            font-weight: 700;
            color: #333333;
            letter-spacing: -0.3px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 52px;
            height: 3px;
            background: var(--primary);
            margin: 10px auto 0;
            border-radius: 4px;
            opacity: 0.5;
        }

        .section-header .sub {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-top: 6px;
        }

  

        /* ===== Hero ===== */
        .hero-section {
            padding: 50px 0 70px;
            background: linear-gradient(135deg, var(--secondary) 0%, #ffffff 100%);
        }

        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .hero-text {
            padding-right: 20px;
        }

        .hero-title {
            font-family: 'Montserrat', sans-serif;
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 16px;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .hero-description {
            font-size: 1.02rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .hero-features ul {
            list-style: none;
            columns: 2;
            margin-bottom: 22px;
        }

        .hero-features li {
            padding: 5px 0;
            display: flex;
            align-items: center;
            font-size: 0.92rem;
            color: var(--text);
        }

        .hero-features li::before {
            content: "✔";
            color: var(--accent);
            margin-right: 10px;
            font-weight: bold;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 4px;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(91, 141, 217, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(91, 141, 217, 0.35);
        }

        .btn-outline {
            display: inline-block;
            padding: 14px 36px;
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: rgba(91, 141, 217, 0.06);
            transform: translateY(-3px);
        }

        .hero-image img {
            max-width: 100%;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            background: #fafcff;
        }

        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-text {
                padding-right: 0;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-features ul {
                columns: 1;
                text-align: left;
                max-width: 380px;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
        }

        @media (max-width: 640px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 28px;
                font-size: 0.92rem;
                width: 100%;
                text-align: center;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
        }

        /* ===== 颜色模块 ===== */
        .gd-spectra-module {
            max-width: 1240px;
            margin: 0 auto 40px;
            padding: 20px 24px;
        }

        .gd-spectra-module .gd-stats-bar {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px 36px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            margin-bottom: 30px;
        }

        .gd-spectra-module .gd-stat-item {
            display: flex;
            align-items: baseline;
            gap: 6px;
            font-size: 0.92rem;
            color: var(--text-light);
        }

        .gd-spectra-module .gd-stat-item .num {
            font-family: 'Montserrat', sans-serif;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--primary);
        }

        .gd-spectra-module .gd-stat-item .num.accent {
            color: var(--accent);
        }

        .gd-comparison {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: center;
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow);
            padding: 28px 24px;
            border: 1px solid var(--border);
            margin-bottom: 36px;
        }

        .gd-comp-card {
            text-align: center;
        }

        .gd-comp-card .label {
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .gd-comp-card .label .highlight {
            color: var(--primary);
        }

        .gd-color-bar {
            height: 26px;
            border-radius: 40px;
            overflow: hidden;
            width: 100%;
            max-width: 300px;
            margin: 0 auto 10px;
            box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .gd-color-bar.spectra {
            background: linear-gradient(90deg, #FF6B6B, #FF9F43, #FECA57, #1DD1A1, #48DBFB, #5B8DD9, #A29BFE);
            background-size: 200% 100%;
            animation: gd-shimmer 8s ease-in-out infinite alternate;
        }

        @keyframes gd-shimmer {
            0% {
                background-position: 0% 0%;
            }
            100% {
                background-position: 100% 0%;
            }
        }

        .gd-color-bar.prev {
            background: linear-gradient(90deg, #d5dce3, #dce2ea, #e2e8f0, #d5dce3);
            opacity: 0.6;
        }

        .gd-comp-metrics {
            display: flex;
            justify-content: center;
            gap: 14px 24px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .gd-comp-metrics .num {
            font-family: 'Montserrat', sans-serif;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--primary-dark);
        }

        .gd-comp-metrics .num.accent-num {
            color: var(--accent);
        }

        .gd-vs {
            font-family: 'Montserrat', sans-serif;
            font-weight: 800;
            font-size: 1rem;
            color: #CBD5E1;
            letter-spacing: 0.08em;
            user-select: none;
            padding: 0 10px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .gd-vs::before,
        .gd-vs::after {
            content: '';
            width: 2px;
            height: 20px;
            background: linear-gradient(to bottom, transparent, var(--border), transparent);
            display: block;
            margin: 4px auto;
        }

        .gd-win-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 3px 16px;
            border-radius: 100px;
            margin-top: 6px;
            text-transform: uppercase;
            box-shadow: 0 4px 16px rgba(255, 138, 92, 0.25);
        }

        .gd-trio {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
            margin-top: 6px;
        }

        .gd-card {
            background: #fff;
            border-radius: 16px;
            padding: 26px 20px 22px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .gd-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .gd-card .gd-icon-box {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: #F7F9FC;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 26px;
            transition: var(--transition);
            border: 1px solid rgba(91, 141, 217, 0.06);
        }

        .gd-card:hover .gd-icon-box {
            background: var(--primary);
            border-color: var(--primary);
            transform: scale(1.04);
        }

        .gd-card .gd-stat-badge {
            font-family: 'Montserrat', sans-serif;
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 4px;
        }

        .gd-card .gd-stat-badge .unit {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-light);
        }

        .gd-card h3 {
            font-family: 'Montserrat', sans-serif;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 4px;
            line-height: 1.3;
        }

        .gd-card h3 .sub {
            display: block;
            font-weight: 400;
            font-size: 0.78rem;
            color: var(--text-light);
            font-family: 'Roboto', sans-serif;
        }

        .gd-card p {
            color: var(--text-light);
            font-size: 0.88rem;
            line-height: 1.7;
            flex: 1;
        }

        .gd-tag {
            display: inline-block;
            background: rgba(91, 141, 217, 0.06);
            color: var(--primary);
            font-size: 0.65rem;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 100px;
            margin-top: 12px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            border: 1px solid rgba(91, 141, 217, 0.04);
        }

        .gd-tag.accent-tag {
            background: rgba(255, 138, 92, 0.08);
            color: var(--accent);
            border-color: rgba(255, 138, 92, 0.1);
        }

        @media (max-width: 860px) {
            .gd-comparison {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .gd-vs {
                flex-direction: row;
                padding: 4px 0;
            }
            .gd-vs::before,
            .gd-vs::after {
                width: 36px;
                height: 2px;
                margin: 0 10px;
                background: linear-gradient(to right, transparent, var(--border), transparent);
            }
            .gd-trio {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 600px) {
            .gd-trio {
                grid-template-columns: 1fr;
            }
            .gd-spectra-module .gd-stats-bar {
                flex-direction: column;
                align-items: center;
                gap: 4px;
            }
        }

        /* ===== 技术规格 ===== */
        .specs-section {
            padding: 50px 0;
            background: var(--secondary);
        }

        .specs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 18px;
            background: #fff;
            padding: 28px 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }

        .spec-item {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }

        .spec-item:last-child {
            border-bottom: none;
        }

        .spec-label {
            font-weight: 500;
            color: var(--primary-dark);
        }

        .spec-item span:last-child {
            color: var(--text);
        }

        /* ===== 图纸 ===== */
        .DrawingDetail {
            padding: 50px 0;
        }

        .DrawingDetail img {
            max-width: 100%;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            background: #fafcff;
        }

        /* ===== 生态系统 ===== */
        .ecosystem-module {
            padding: 50px 0 70px;
            background: #ffffff;
        }

        .ecosystem-module .section-header {
            margin-bottom: 36px;
        }

        .ecosystem-module .section-header .badge {
            display: inline-block;
            background: rgba(91, 141, 217, 0.06);
            color: var(--primary);
            font-size: 0.65rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 4px 18px;
            border-radius: 30px;
            margin-bottom: 10px;
            border: 1px solid rgba(91, 141, 217, 0.06);
        }

        .eco-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 16px;
        }

        .eco-card {
            background: #fff;
            border-radius: 18px;
            padding: 26px 18px 22px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
            border: 1px solid rgba(91, 141, 217, 0.06);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .eco-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 48px rgba(91, 141, 217, 0.10);
            border-color: rgba(91, 141, 217, 0.12);
        }

        .eco-card .eco-icon {
            width: 100px;
            height: 100px;
            background: rgba(91, 141, 217, 0.04);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            transition: var(--transition);
            overflow: hidden;
        }

        .eco-card .eco-icon img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            padding: 4px;
        }

        .eco-card:hover .eco-icon {
            background: rgba(91, 141, 217, 0.10);
            transform: scale(1.03);
        }

        .eco-card h3 {
            font-family: 'Montserrat', sans-serif;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }

        .eco-card p {
            color: var(--text-light);
            font-size: 0.86rem;
            line-height: 1.6;
            flex: 1;
        }

        .eco-card .eco-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.82rem;
        }

        .eco-card .eco-link:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .eco-card .eco-link .arrow {
            transition: transform 0.3s ease;
            display: inline-block;
        }

        .eco-card .eco-link:hover .arrow {
            transform: translateX(4px);
        }

        .eco-card .eta {
            margin-top: 10px;
            font-size: 0.78rem;
            color: var(--text-light);
            background: #f7f9fc;
            padding: 2px 16px;
            border-radius: 12px;
        }

        .eco-note {
            margin-top: 36px;
            text-align: center;
            padding: 16px 28px;
            background: #f8faff;
            border-radius: 16px;
            border: 1px solid rgba(91, 141, 217, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px 18px;
        }

        .eco-note p {
            color: var(--text-light);
            font-size: 0.92rem;
            margin: 0;
        }

        .eco-note p strong {
            color: var(--primary);
        }

        .eco-note .btn-sample {
            display: inline-block;
            padding: 8px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(255, 138, 92, 0.25);
        }

        .eco-note .btn-sample:hover {
            background: #e8774a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 138, 92, 0.35);
        }

        @media (max-width: 992px) {
            .eco-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
        }

        @media (max-width: 600px) {
            .eco-grid {
                grid-template-columns: 1fr;
                max-width: 380px;
                margin-left: auto;
                margin-right: auto;
            }
            .eco-note {
                flex-direction: column;
                padding: 14px 18px;
            }
        }

        /* ===== 下载模块 ===== */
        .download-module {
            padding: 50px 0;
        }

        .download-grid {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .download-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: #fff;
            padding: 12px 20px;
            border-radius: 8px;
            border: 1px solid var(--border);
            text-decoration: none;
            color: var(--text);
            transition: 0.2s ease;
            cursor: pointer;
        }

        .download-card:hover {
            background: var(--secondary);
            border-color: var(--primary-light);
        }

        .download-card .file-name {
            font-weight: 500;
            color: var(--primary-dark);
            font-size: 0.96rem;
        }

        .download-card .download-arrow {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: transparent;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: 0.2s ease;
        }

        .download-card:hover .download-arrow {
            color: var(--accent);
            transform: translateY(2px);
        }

        @media (max-width: 640px) {
            .download-card {
                padding: 10px 14px;
                flex-wrap: wrap;
            }
            .download-card .file-name {
                font-size: 0.85rem;
            }
        }

        /* ===== 应用 ===== */
        .epaper-applications-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
            margin-top: 36px;
        }

        .epaper-app-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .epaper-app-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .epaper-app-image {
            height: 180px;
            overflow: hidden;
            background: #f7f9fc;
        }

        .epaper-app-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .epaper-app-card:hover .epaper-app-image img {
            transform: scale(1.04);
        }

        .epaper-app-content {
            padding: 18px 22px 20px;
        }

        .epaper-app-title {
            font-family: 'Montserrat', sans-serif;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin: 0;
        }

        /* ===== 推荐产品 ===== */
        .recommended-section {
            padding: 50px 0;
            background: var(--secondary);
        }

        .recommended-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 28px;
        }

        .product-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid rgba(91, 141, 217, 0.04);
        }

        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .product-card .product-info {
            padding: 16px 18px 20px;
            text-align: center;
        }

        .product-card .product-info img {
            max-width: 100%;
            height: auto;
            max-height: 120px;
            object-fit: contain;
            margin-bottom: 10px;
            background: #fafcff;
        }

        .product-card .product-name {
            font-family: 'Montserrat', sans-serif;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .product-card .product-link {
            display: inline-block;
            padding: 6px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: 20px;
            text-decoration: none;
            font-size: 0.78rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .product-card .product-link:hover {
            background: var(--primary-light);
        }

        @media (max-width: 1024px) {
            .recommended-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .recommended-grid {
                grid-template-columns: 1fr;
                max-width: 340px;
                margin-left: auto;
                margin-right: auto;
            }
        }

        /* ===== 可持续 ===== */
.eco-section {
    padding: 50px 0;
    background: transparent;
}

        .eco-grid-sustainable {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
            margin-top: 28px;
        }

        .eco-card-sustainable {
            background: rgba(255, 255, 255, 0.92);
            padding: 28px 24px;
            border-radius: 16px;
            box-shadow: var(--shadow);
            text-align: center;
            border: 1px solid rgba(91, 141, 217, 0.04);
            transition: var(--transition);
        }

        .eco-card-sustainable:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .eco-card-sustainable h3 {
            font-family: 'Montserrat', sans-serif;
            font-size: 1.15rem;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .eco-card-sustainable p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== 关于我们 ===== */
        .about-section {
            padding: 50px 0;
            background: var(--secondary);
            text-align: center;
        }

        .about-content {
            max-width: 780px;
            margin: 0 auto;
        }

        .about-content p {
            color: var(--text-light);
            font-size: 0.98rem;
            line-height: 1.8;
        }

        .about-content a {
            color: var(--primary);
            font-weight: 500;
            text-decoration: none;
        }

        .about-content a:hover {
            color: var(--primary-light);
            text-decoration: underline;
        }

        .contact-button {
            display: inline-block;
            margin-top: 20px;
            padding: 14px 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(91, 141, 217, 0.25);
        }

        .contact-button:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(91, 141, 217, 0.35);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 24px;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 480px) {
            .section-header h2 {
                font-size: 20px;
            }
        }