/* ===== 基础重置与字体 ===== */
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f9f9;
        }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        /* ===== 通用间距 ===== */
        .section { padding: 70px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 2.5rem;
            color: #1a1a2e;
            margin-bottom: 15px;
            font-weight: 800;
        }
        .section-title p {
            font-size: 1.1rem;
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }

        /* ===== 英雄横幅区 ===== */
        .hero {
            background: linear-gradient(135deg, #1a1a2e 0%, #2d2d4e 100%);
            color: white;
            padding: 100px 0 80px;
            text-align: center;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            font-weight: 900;
        }
        .hero p {
            font-size: 1.3rem;
            margin-bottom: 30px;
            opacity: 0.9;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-button {
            display: inline-block;
            background: linear-gradient(90deg, #00b8d4, #7c4dff);
            color: white;
            padding: 16px 40px;
            font-size: 1.1rem;
            font-weight: 700;
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(124, 77, 255, 0.4);
        }

        /* ===== 市场聚焦区 ===== */
        .market-focus {
            background: white;
        }
        .market-cards {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 25px;
            margin-top: 40px;
        }
        .market-card {
            background: #f0f9ff;
            border-left: 5px solid #00b8d4;
            padding: 25px;
            border-radius: 10px;
            flex: 1;
            min-width: 250px;
            max-width: 350px;
        }
        .market-card h3 {
            color: #1a1a2e;
            margin-bottom: 10px;
            font-size: 1.3rem;
        }

        /* ===== 双模式服务区 - 图片优化 ===== */
        .service-modes {
            background: #f8fafc;
        }
        .mode-container {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: stretch; /* 改为等高 */
        }
        .mode-box {
            flex: 1;
            min-width: 300px;
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
        }
        .mode-box h3 {
            color: #1a1a2e;
            font-size: 1.8rem;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f9ff;
        }
        .mode-image-container {
            text-align: center;
            margin: 20px 0;
            flex-shrink: 0; /* 防止图片区域被压缩 */
        }
        .mode-image {
            width: 100%;
            max-width: 300px; /* 控制最大宽度 */
            height: 200px; /* 固定高度 */
            object-fit: contain; /* 保持图片比例，完整显示 */
            border-radius: 8px;
            display: block;
            margin: 0 auto;
            background-color: #f8fafc; /* 加载前的背景色 */
        }
        .highlight {
            color: #7c4dff;
            font-weight: 700;
        }
        .feature-list {
            list-style: none;
            margin-top: 20px;
            flex-grow: 1; /* 让列表区域填充剩余空间 */
        }
        .feature-list li {
            padding: 10px 0;
            border-bottom: 1px dashed #eee;
        }
        .feature-list li:before {
            content: "✓";
            color: #00b8d4;
            font-weight: bold;
            margin-right: 10px;
        }

        /* ===== 品牌展示区 ===== */
        .brand-showcase { background: white; }
        .brand-intro {
            text-align: center;
            margin-bottom: 40px;
            font-size: 1.1rem;
            color: #555;
        }
        .brand-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 30px;
        }
        .brand-item {
            background: #f8fafc;
            border-radius: 10px;
            padding: 25px;
            text-align: center;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .brand-item:hover { 
            transform: translateY(-5px); 
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .brand-logo-placeholder {
            width: 120px;
            height: 120px;
            background: #e0e0e0;
            border-radius: 10px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #999;
            font-weight: bold;
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        .brand-item h4 {
            color: #1a1a2e;
            margin-bottom: 10px;
            font-size: 1.3rem;
        }
        .brand-item p {
            flex-grow: 1; /* 让描述文字填充空间，对齐链接 */
        }
        .brand-link {
            display: inline-block;
            margin-top: 15px;
            color: #06b6d4;
            font-weight: 600;
            text-decoration: none;
            border-bottom: 1px dashed #06b6d4;
            font-size: 0.95rem;
            transition: color 0.3s ease;
        }
        .brand-link:hover {
            color: #7c4dff;
            border-bottom-color: #7c4dff;
        }

        /* ===== 定制流程区 ===== */
        .custom-process { background: #f8fafc; }
        .process-steps {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            position: relative;
            margin-top: 50px;
        }
        .process-steps:before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            width: 80%;
            height: 3px;
            background: #00b8d4;
            z-index: 1;
        }
        .step {
            position: relative;
            z-index: 2;
            background: white;
            padding: 25px;
            border-radius: 10px;
            width: 18%;
            min-width: 150px;
            margin-bottom: 20px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .step-number {
            background: linear-gradient(135deg, #00b6d4, #7c4dff);
            color: white;
            width: 50px;
            height: 50px;
            line-height: 50px;
            border-radius: 50%;
            font-size: 1.5rem;
            font-weight: bold;
            margin: 0 auto 15px;
        }
        .step h4 { margin-bottom: 10px; color: #1a1a2e; }

        /* ===== 实力背书区 - 图片优化 ===== */
        .strength { background: white; }
        .strength-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        .strength-card {
            text-align: center;
            padding: 25px;
            background: #f8fafc;
            border-radius: 10px;
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .strength-card:hover {
            transform: translateY(-5px);
        }
        .strength-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        .strength-img {
            width: 100%;
            height: 200px; /* 固定高度，与双模式服务区统一 */
            object-fit: cover; /* 填充覆盖，适合展示实景 */
            border-radius: 8px;
            margin-bottom: 15px;
            border: 1px solid #eee;
            display: block;
        }
        .strength-card h4 { 
            margin-bottom: 15px; 
            color: #1a1a2e; 
            font-size: 1.3rem;
        }
        .strength-card p {
            flex-grow: 1; /* 让文字描述对齐 */
        }

        /* ===== 询盘区 ===== */
        .contact-cta {
            background: linear-gradient(135deg, #1a1a2e 0%, #2d2d4e 100%);
            color: white;
            text-align: center;
            padding: 80px 0;
        }
        .contact-cta h2 { 
            font-size: 2.5rem; 
            margin-bottom: 20px; 
        }
        .contact-cta p { 
            font-size: 1.2rem; 
            margin-bottom: 30px; 
            opacity: 0.9; 
        }
        .inquiry-options {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 25px;
            margin-bottom: 40px;
        }
        .inquiry-option {
            flex: 1;
            min-width: 280px;
            max-width: 400px;
            background: rgba(255,255,255,0.1);
            padding: 35px;
            border-radius: 15px;
            backdrop-filter: blur(10px);
        }
        .inquiry-option h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }
        .option-wholesale h3 { color: #00b8d4; }
        .option-custom h3 { color: #7c4dff; }
        .option-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        .inquiry-button {
            display: inline-block;
            padding: 12px 30px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-wholesale {
            background: #00b8d4;
            color: white;
        }
        .btn-custom {
            background: #7c4dff;
            color: white;
        }
        .inquiry-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.2);
        }

        /* ===== 图片悬停效果 ===== */
        img {
            transition: transform 0.5s ease;
            border-radius: 8px;
        }
        img:hover {
            transform: scale(1.02);
        }

        /* ===== 响应式设计 ===== */
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.2rem; }
            .hero p, .section-title p { font-size: 1rem; }
            .section-title h2 { font-size: 2rem; }
            .section { padding: 50px 0; }
            .mode-container, .market-cards, .inquiry-options { 
                flex-direction: column; 
            }
            .mode-image {
                height: 180px; /* 移动端稍小 */
            }
            .strength-img {
                height: 180px;
            }
            .process-steps { 
                justify-content: center; 
            }
            .process-steps:before { 
                display: none; 
            }
            .step { 
                width: 90%; 
                margin: 10px auto; 
            }
            .strength-card, .inquiry-option {
                min-width: 100%;
            }
        }