/* --- 全局变量与质感 --- */
        :root {
            --primary: #1a1a1a;
            --secondary: #666;
            --border: #e2e8f0;
            --bg: #fcfcfc;
            
            /* 价格颜色 */
            --price-color: #1a1a1a;
            
            /* 推荐色 (至尊版) */
            --accent-gold: #c5a47e; 
            --accent-gold-light: #fdfbf7;
            
            /* 黑金合作伙伴色 */
            --partner-bg: #111;
            --partner-text: #fff;
            --partner-gold: #d4af37;
        }

        body {
            margin: 0;
            font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--primary);
            line-height: 1.6;
            /* 延续统一的噪点背景 */
            background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");
        }

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

        /* --- 头部 --- */
        .pricing-header {
            text-align: center;
            padding: 80px 0 60px;
        }

        .pricing-title {
            font-size: 42px;
            font-weight: 300;
            margin-bottom: 20px;
        }
        
        .pricing-subtitle {
            color: var(--secondary);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* --- 1. C端会员卡片区 (三列布局) --- */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 80px;
            align-items: stretch; /* 让卡片高度一致 */
        }

        .plan-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 40px 30px;
            position: relative;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .plan-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.06);
        }

        /* 至尊会员特殊样式 */
        .plan-card.recommended {
            border-color: var(--accent-gold);
            background-color: var(--accent-gold-light);
            box-shadow: 0 10px 30px rgba(197, 164, 126, 0.15);
            transform: scale(1.05); /* 稍微放大 */
            z-index: 2;
        }
        
        .plan-card.recommended:hover {
            transform: scale(1.05) translateY(-10px);
        }

        .recommend-tag {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent-gold);
            color: white;
            font-size: 12px;
            padding: 4px 12px;
            border-bottom-left-radius: 8px;
            border-bottom-right-radius: 8px;
            font-weight: 600;
            letter-spacing: 1px;
        }

        .plan-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 15px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .plan-price {
            font-size: 48px;
            font-weight: 700;
            color: var(--price-color);
            margin-bottom: 10px;
            line-height: 1;
        }
        
        .plan-price span {
            font-size: 16px;
            font-weight: 400;
            color: var(--secondary);
        }

        .plan-divider {
            height: 1px;
            background: #eee;
            margin: 30px 0;
            width: 100%;
        }
        
        .plan-card.recommended .plan-divider {
            background: rgba(197, 164, 126, 0.3);
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
            flex-grow: 1; /* 撑开高度 */
        }

        .feature-list li {
            margin-bottom: 18px;
            font-size: 14px;
            color: #555;
            display: flex;
            align-items: flex-start;
        }

        .feature-list li::before {
            content: '✓';
            color: var(--accent-gold);
            margin-right: 10px;
            font-weight: bold;
        }
        
        /* 灰色不可用项 */
        .feature-list li.disabled {
            color: #ccc;
            text-decoration: line-through;
        }
        .feature-list li.disabled::before {
            content: '×';
            color: #ddd;
        }

        .highlight-text {
            color: #b88a4d;
            font-weight: 600;
        }

        .btn-plan {
            display: block;
            width: 100%;
            padding: 15px 0;
            text-align: center;
            border-radius: 4px;
            text-decoration: none;
            font-weight: 600;
            margin-top: 30px;
            transition: all 0.3s;
        }

        .btn-outline {
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        .btn-solid {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-solid:hover {
            background: #333;
        }

        /* --- 2. 合作伙伴 (横向宽卡片) --- */
        .partner-section {
            background: var(--partner-bg);
            color: var(--partner-text);
            border-radius: 12px;
            padding: 60px;
            margin-bottom: 100px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 30px 60px rgba(0,0,0,0.3);
        }

        /* 装饰用的金色光晕 */
        .partner-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, rgba(0,0,0,0) 70%);
            pointer-events: none;
        }

        .partner-info {
            flex: 1;
            padding-right: 50px;
            z-index: 1;
        }

        .partner-badge {
            display: inline-block;
            border: 1px solid var(--partner-gold);
            color: var(--partner-gold);
            padding: 4px 12px;
            font-size: 12px;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .partner-title {
            font-size: 36px;
            margin-bottom: 15px;
            font-weight: 300;
        }
        
        .partner-title strong {
            color: var(--partner-gold);
        }

        .partner-price {
            font-size: 42px;
            color: var(--partner-gold);
            font-family: 'Georgia', serif;
            margin-bottom: 30px;
        }
        .partner-price span { font-size: 16px; color: #888; font-family: sans-serif; }

        .partner-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 40px;
        }
        
        .p-feat-item {
            display: flex;
            align-items: center;
            font-size: 14px;
            color: #ccc;
        }
        .p-feat-item span {
            width: 6px;
            height: 6px;
            background: var(--partner-gold);
            margin-right: 10px;
            border-radius: 50%;
        }

        .btn-gold {
            background: var(--partner-gold);
            color: #000;
            padding: 15px 40px;
            border-radius: 4px;
            text-decoration: none;
            font-weight: bold;
            display: inline-block;
            transition: all 0.3s;
        }
        .btn-gold:hover {
            background: #f3e5b5;
            transform: translateY(-2px);
        }

        /* 响应式 */
        @media (max-width: 992px) {
            .pricing-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto 60px; }
            .plan-card.recommended { transform: none; }
            .plan-card.recommended:hover { transform: translateY(-10px); }
            
            .partner-section { flex-direction: column; padding: 40px; text-align: center; }
            .partner-info { padding-right: 0; margin-bottom: 30px; }
            .partner-features { text-align: left; }
        }