* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .sn-contact {
            --ink: #0f172a; 
            --muted: #667085; 
            --line: #e5e7eb;
            --layer1: #ffffff; 
            --layer2: #f3faf5; 
            --layer3: #eef5ff;
            --accent: #14532d; 
            --shadow: 0 10px 28px rgba(15,23,42,.08);
            font-family: inherit; 
            color: var(--ink); 
            background: var(--layer2); 
            padding: 42px 0;
        }
        
        .sn-wrap { 
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 16px;
        }
        
        .hero {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
            border: 1px solid var(--line);
            border-radius: 20px;
            box-shadow: var(--shadow);
            overflow: hidden;
            background: radial-gradient(140% 70% at -10% 0%, var(--layer3) 0%, transparent 60%),
                        linear-gradient(180deg, var(--layer1) 0%, #f9fbff 100%);
            padding: 30px;
            position: relative;
        }
        
        .hero::before {
            content: "";
            position: absolute;
            inset: 0 0 auto 0;
            height: 4px;
            background: linear-gradient(90deg, #8fd3ff, #b6f3c7, #ffe29b, #8fd3ff);
            background-size: 300% 100%;
            animation: rib 12s linear infinite;
        }
        
        @keyframes rib {
            0% { background-position: 0% 50%; }
            100% { background-position: 100% 50%; }
        }
        
        .hero-content {
            display: flex;
            flex-direction: column;
        }
        
        h1#contact-title {
            margin: 0 0 20px;
            font-size: 36px;
            line-height: 1.2;
            color: #0f3e2f;
        }
        
        .lead {
            color: #1b3f36;
            margin: 0 0 25px;
            font-size: 18px;
            line-height: 1.6;
        }
        
        .chips {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        
        .chip {
            font-size: 14px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 8px 16px;
            text-decoration: none;
            color: #0f3e2f;
            transition: all 0.3s ease;
        }
        
        .chip:hover {
            background: #f0f7ff;
            border-color: #8fd3ff;
            transform: translateY(-2px);
        }
        
        .hero-img {
            width: 100%;
            aspect-ratio: 4/3;
            background: #f2f4f7;
            border: 1px dashed #d7dde4;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #667085;
            font-size: 13px;
            overflow: hidden;
        }
        
        .hero-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }
        
        .grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        
        .card {
            grid-column: span 6;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 16px;
            box-shadow: var(--shadow);
            padding: 24px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .card h2 {
            font-size: 22px;
            margin: 0 0 16px;
            color: var(--accent);
        }
        
        .card p, .card li {
            color: #334155;
            line-height: 1.6;
        }
        
        .meta {
            font-size: 14px;
            color: #6b7280;
            margin-top: 16px;
        }
        
        .list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        
        .list li {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            margin: 16px 0;
        }
        
        .badge {
            display: inline-block;
            font-size: 12px;
            background: #e7f5ec;
            border: 1px solid #cfeade;
            border-radius: 999px;
            padding: 6px 12px;
            color: #0f3e2f;
            margin-top: 16px;
        }
        
        details.acc {
            border: 1px solid #eef0f4;
            border-radius: 12px;
            padding: 16px;
            background: #fcfcfd;
            margin: 12px 0;
        }
        
        details.acc summary {
            cursor: pointer;
            font-weight: 600;
            color: #0f2940;
        }
        
        details.acc[open] {
            background: #f8faff;
        }
        
        /* 响应式设计 */
        @media (max-width: 900px) {
            .hero {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            
            .card {
                grid-column: span 12;
            }
            
            .chips {
                justify-content: center;
            }
        }
        
        @media (max-width: 600px) {
            .hero {
                padding: 20px;
            }
            
            h1#contact-title {
                font-size: 28px;
            }
            
            .lead {
                font-size: 16px;
            }
            
            .chip {
                font-size: 13px;
                padding: 6px 12px;
            }
        }