/* =========================================
           全局变量
           ========================================= */
        :root {
            --primary: #1a1a1a;
            --secondary: #666666;
            --bg-color: #fcfcfc;
            --border-color: #e2e8f0;
            --accent-teal: #008080; 
            --accent-teal-light: #e6fffa;
            --accent-gold: #b78628; /* 会员金 */
            --card-radius: 8px;
        }

        body {
            font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-color);
            color: var(--primary);
            line-height: 1.6;
            margin: 0;
            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; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
        * { box-sizing: border-box; }

        /* =========================================
           1. 头部
           ========================================= */
        .detail-header { padding: 40px 0 30px; border-bottom: 1px solid var(--border-color); margin-bottom: 40px; }
        .breadcrumb { font-size: 13px; color: #999; margin-bottom: 15px; }
        .header-content { display: flex; align-items: center; gap: 20px; }
        .header-icon { width: 80px; height: 80px; background: var(--accent-teal-light); color: var(--accent-teal); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 32px; font-weight: 700; flex-shrink: 0; }
        .header-text h1 { font-size: 32px; margin: 0 0 8px 0; font-weight: 700; }
        .header-meta { display: flex; gap: 20px; font-size: 14px; color: #666; }

        /* =========================================
           2. 布局
           ========================================= */
        .detail-layout { display: grid; grid-template-columns: 1fr 340px; gap: 40px; padding-bottom: 80px; }

        /* =========================================
           3. 左侧：轮播图 (Carousel) - 核心修改
           ========================================= */
        .gallery-slider {
            position: relative;
            width: 100%;
            padding-top: 56.25%; /* 16:9 比例 */
            background: #000;
            border-radius: var(--card-radius);
            overflow: hidden;
            margin-bottom: 40px;
        }

        .slider-wrapper {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            display: flex;
            transition: transform 0.5s ease-in-out;
        }

        .slide-item {
            min-width: 100%; height: 100%;
            display: flex; align-items: center; justify-content: center;
            background: #f0f2f5;
            position: relative;
        }
        
        /* 实际图片样式 */
        .slide-img { width: 100%; height: 100%; object-fit: cover; }
        
        /* 占位符样式 */
        .slide-placeholder { color: #aaa; font-size: 20px; display: flex; flex-direction: column; align-items: center; }

        /* 轮播控制按钮 */
        .slider-btn {
            position: absolute; top: 50%; transform: translateY(-50%);
            width: 40px; height: 40px; background: rgba(0,0,0,0.5); color: #fff;
            border: none; border-radius: 50%; cursor: pointer; z-index: 10;
            display: flex; align-items: center; justify-content: center; font-size: 20px;
            transition: background 0.3s;
        }
        .slider-btn:hover { background: rgba(0,0,0,0.8); }
        .prev-btn { left: 15px; }
        .next-btn { right: 15px; }

        /* 轮播圆点 */
        .slider-dots {
            position: absolute; bottom: 15px; left: 50%; transform: translateX(-50%);
            display: flex; gap: 8px; z-index: 10;
        }
        .dot { width: 8px; height: 8px; background: rgba(255,255,255,0.5); border-radius: 50%; cursor: pointer; }
        .dot.active { background: #fff; transform: scale(1.2); }

        /* =========================================
           4. 左侧：Tab 内容切换 - 核心修改
           ========================================= */
        .content-tabs { border-bottom: 1px solid var(--border-color); margin-bottom: 30px; }
        .tab-link {
            display: inline-block; padding: 15px 25px; font-size: 16px; font-weight: 500; color: #666;
            cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; transition: color 0.3s;
        }
        .tab-link:hover { color: var(--accent-teal); }
        .tab-link.active { color: var(--accent-teal); border-bottom-color: var(--accent-teal); }

        /* 内容容器 */
        .tab-pane { display: none; animation: fadeIn 0.4s ease; }
        .tab-pane.active { display: block; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

        /* 文章样式 */
        .article-body { color: #444; font-size: 16px; line-height: 1.8; }
        .article-body h2 { font-size: 20px; margin: 30px 0 15px; border-left: 4px solid var(--accent-teal); padding-left: 15px; }
        .article-body ul { list-style: disc; padding-left: 20px; color: #555; }
        .feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 30px 0; }
        .feature-item { background: #fff; border: 1px solid #eee; padding: 20px; border-radius: 8px; }

        /* 日志样式 */
        .changelog-item { margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px dashed #eee; }
        .ver-title { font-weight: 700; color: #333; margin-bottom: 5px; display: flex; justify-content: space-between; }
        .ver-date { font-weight: 400; color: #999; font-size: 13px; }

        /* FAQ 样式 */
        .faq-item { margin-bottom: 20px; }
        .faq-q { font-weight: 700; color: #333; margin-bottom: 5px; cursor: pointer; }
        .faq-a { color: #666; font-size: 14px; padding-left: 15px; border-left: 2px solid #eee; }

    css
/* =========================================
   右侧购买卡片 - 价格层级优化版
   ========================================= */
.buy-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    position: sticky; top: 20px;
}

/* 1. 核心价格区 (Hero Price) */
.price-hero-section {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px dashed #eee;
}

.price-label {
    font-size: 14px; color: #999; margin-bottom: 5px;
}

.final-price {
    font-size: 42px; line-height: 1; font-weight: 700; color: var(--primary);
    display: flex; align-items: center; justify-content: center; gap: 10px;
}
.currency-symbol { font-size: 24px; font-weight: 500; margin-top: 8px; }

/* 原价划线样式 */
.original-price-del {
    font-size: 16px; color: #aaa; text-decoration: line-through; font-weight: 400;
    margin-top: 15px; /* 对齐调整 */
}

/* 免费的高亮样式 */
.price-free-text { color: var(--accent-teal); }

/* 2. 购买按钮区 */
.btn-buy-now {
    display: block; width: 100%; text-align: center;
    background: var(--primary); color: #fff;
    padding: 15px; border-radius: 6px; font-weight: 600; font-size: 16px;
    margin-bottom: 15px; transition: 0.3s; cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.btn-buy-now:hover { background: #000; transform: translateY(-2px); }

/* 3. 会员权益参考表 (Member Matrix) */
.member-matrix {
    background: #f9f9f9;
    border-radius: 8px;
    padding: 15px;
    margin-top: 20px;
}

.matrix-title {
    font-size: 12px; font-weight: 700; color: #333; margin-bottom: 10px;
    display: flex; justify-content: space-between; align-items: center;
}
.upgrade-link { color: var(--accent-teal); font-weight: normal; cursor: pointer; }

/* 表格行 */
.matrix-row {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px; color: #666; margin-bottom: 8px;
    padding: 6px 0; border-bottom: 1px solid #eee;
}
.matrix-row:last-child { border-bottom: none; margin-bottom: 0; }

.m-role { display: flex; align-items: center; gap: 6px; }
.m-price { font-weight: 600; color: #333; }

/* 当前身份高亮 */
.matrix-row.current {
    color: var(--accent-teal);
}
.matrix-row.current .m-role, 
.matrix-row.current .m-price {
    font-weight: 700; color: var(--accent-teal);
}
.matrix-row.current::after {
    content: '✓'; font-weight: bold; margin-left: 5px;
}

/* 免费标签 */
.tag-free {
    background: var(--accent-teal); color: #fff; padding: 1px 5px;
    border-radius: 3px; font-size: 10px; transform: scale(0.9);
}
        
        /* 角色标签 */
        .role-tag {
            font-size: 13px; color: #555; display: flex; align-items: center; gap: 6px; font-weight: 500;
        }
        .role-icon { font-size: 14px; }

        /* 价格显示 */
        .role-price { font-size: 14px; font-weight: 600; color: #333; }
        .price-original { text-decoration: line-through; color: #aaa; font-weight: 400; font-size: 12px; margin-right: 5px; }
        
        /* 高亮样式：免费/至尊 */
        .vip-row.highlight {
            background: var(--accent-teal-light);
            border-color: #b2f5ea;
        }
        .vip-row.highlight .role-price { color: var(--accent-teal); font-weight: 700; }
        
        /* 免费徽章 */
        .badge-free {
            background: var(--accent-teal); color: #fff;
            font-size: 10px; padding: 2px 6px; border-radius: 4px;
            text-transform: uppercase;
        }

        /* 按钮组 */
        .btn-buy-now {
            display: block; width: 100%; text-align: center;
            background: var(--primary); color: #fff;
            padding: 14px; border-radius: 6px; font-weight: 600; font-size: 16px;
            margin-bottom: 10px; transition: 0.3s;
        }
        .btn-buy-now:hover { background: #000; }
        
        .btn-upgrade {
            display: block; width: 100%; text-align: center;
            background: #fff; color: var(--accent-gold); border: 1px solid var(--accent-gold);
            padding: 10px; border-radius: 6px; font-size: 14px; font-weight: 500;
        }
        .btn-upgrade:hover { background: #fffbf0; }

        .info-list { margin-top: 25px; border-top: 1px solid #eee; padding-top: 20px; }
        .info-row { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 8px; color: #666; }

        /* 响应式 */
        @media (max-width: 900px) {
            .detail-layout { grid-template-columns: 1fr; }
            .buy-card { position: static; }
        }