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

        body {
            background: #ffffff;      /* 纯白背景 */
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            color: #1e2a3e;
            line-height: 1.5;
            scroll-behavior: smooth;
        }

        /* 容器约束 */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 3rem 2rem 5rem;
        }

        /* 头部区域 */
        .hero {
            text-align: center;
            margin-bottom: 3.5rem;
        }

        .hero-badge {
            display: inline-block;
            background: #f2f4f8;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #c2410c;
            letter-spacing: 0.5px;
            margin-bottom: 1rem;
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            background: linear-gradient(135deg, #1e2a3e 0%, #c2410c 80%);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .hero-sub {
            font-size: 1.2rem;
            color: #4a5b6e;
            max-width: 700px;
            margin: 0 auto;
            border-bottom: 2px solid #ffe6d5;
            display: inline-block;
            padding-bottom: 0.5rem;
        }

        /* 图片预留区域通用样式 (后期随意替换) */
        .image-placeholder {
            background-color: #f8fafc;
            border-radius: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: #94a3b8;
            font-weight: 500;
            border: 1px dashed #cbd5e1;
            transition: all 0.2s ease;
            min-height: 200px;
            width: 100%;
            flex-direction: column;
            gap: 12px;
        }

        .image-placeholder .placeholder-icon {
            font-size: 3rem;
            opacity: 0.6;
        }

        .image-placeholder .placeholder-text {
            font-size: 0.9rem;
            background: #ffffffaa;
            padding: 4px 12px;
            border-radius: 50px;
        }

        /* 核心宣言区 */
        .core-message {
            background: #fefaf5;
            border-radius: 48px;
            padding: 2rem 2rem;
            margin: 3rem 0 3rem;
            text-align: center;
            border: 1px solid #ffede0;
        }

        .core-message p {
            font-size: 1.35rem;
            font-weight: 500;
            color: #2c3e4e;
            max-width: 900px;
            margin: 0 auto;
        }

        .core-message strong {
            color: #c2410c;
            font-weight: 700;
        }

        /* 双栏布局：合作伙伴 + 图片预留 */
        .partner-showcase {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin: 3rem 0 4rem;
            align-items: center;
        }

        .partner-logos {
            flex: 1.2;
            background: #ffffff;
            border-radius: 32px;
            padding: 1.8rem;
            box-shadow: 0 8px 20px rgba(0,0,0,0.02), 0 2px 6px rgba(0,0,0,0.03);
            border: 1px solid #eeece8;
        }

        .partner-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 8px;
            color: #1e2a3e;
        }

        .partner-title span {
            background: #c2410c10;
            padding: 4px 8px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 500;
            color: #c2410c;
        }

        .partner-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            margin-bottom: 1.8rem;
        }

        .partner-item {
            background: #f8fafc;
            padding: 0.8rem 1.2rem;
            border-radius: 100px;
            font-weight: 600;
            color: #1e293b;
            font-size: 1rem;
            border: 1px solid #e9eef3;
            transition: all 0.2s;
        }

        .partner-item:hover {
            background: #fff1e6;
            border-color: #ffcdad;
        }

        .stat-line {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #2c5f8a;
            background: #f0f6fe;
            padding: 0.8rem 1rem;
            border-radius: 24px;
            display: inline-block;
            width: auto;
        }

        .image-spot {
            flex: 0.9;
            min-width: 260px;
        }

        /* 三大区域集群卡片 */
        .clusters-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 2rem 0 1.5rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .clusters-title:before {
            content: "📍";
            font-size: 1.8rem;
        }

        .cluster-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin: 2rem 0 3rem;
        }

        .cluster-card {
            background: #ffffff;
            border-radius: 32px;
            padding: 1.6rem;
            box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.05);
            border: 1px solid #f0ede9;
            transition: transform 0.25s ease, box-shadow 0.25s;
        }

        .cluster-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 30px -12px rgba(0, 0, 0, 0.1);
            border-color: #ffddd0;
        }

        .cluster-icon {
            font-size: 2.2rem;
            margin-bottom: 1rem;
        }

        .cluster-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .cluster-region {
            display: inline-block;
            background: #c2410c10;
            color: #c2410c;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .cluster-desc {
            color: #334155;
            margin: 1rem 0;
            line-height: 1.5;
        }

        .vertical-tag {
            font-weight: 700;
            color: #1e2a3e;
            margin-top: 0.8rem;
            font-size: 0.85rem;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .vertical-tag span {
            background: #f1f5f9;
            padding: 4px 10px;
            border-radius: 20px;
        }

        /* 线上线下 + 全国联动部分 (图片预留) */
        .network-ecosystem {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin: 3rem 0;
            background: #fdfdfa;
            border-radius: 40px;
            padding: 1.8rem;
            align-items: center;
            border: 1px solid #f3ede7;
        }

        .network-content {
            flex: 1.2;
        }

        .network-content h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .network-feature {
            font-size: 1rem;
            color: #2d3e50;
            margin: 1rem 0;
            padding-left: 1rem;
            border-left: 3px solid #c2410c;
        }

        .network-image {
            flex: 0.9;
        }

        /* 最后品牌宣言 */
        .footer-note {
            text-align: center;
            margin-top: 4rem;
            padding: 2rem 1rem;
            background: #fefbf8;
            border-radius: 60px;
            border: 1px solid #ffefe2;
        }

        .footer-note p {
            font-size: 1.2rem;
            font-weight: 500;
            color: #2c3e50;
        }

        .footer-note .highlight {
            color: #c2410c;
            font-weight: 800;
        }

        hr {
            margin: 2rem 0 0.5rem;
            border: none;
            border-top: 1px solid #ece8e2;
        }

        /* 响应式调整 */
        @media (max-width: 780px) {
            .container {
                padding: 2rem 1.25rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .core-message p {
                font-size: 1.1rem;
            }
            .partner-showcase, .network-ecosystem {
                flex-direction: column;
            }
        }

        /* 图片占位内部装饰 - 方便后期直接替换成 <img> */
        .image-placeholder img {
            max-width: 100%;
            border-radius: 24px;
            object-fit: cover;
        }