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

        :root {
            --primary: #4a6fa5;
            --primary-dark: #3a5a8c;
            --primary-light: #eef3fc;
            --accent: #c9a03d;
            --accent-light: #fef6e6;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-soft: #f9fbfd;
            --text-dark: #1f2a44;
            --text-mid: #4a5b7a;
            --text-light: #8a9bb5;
            --border: #e9edf4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.02), 0 1px 2px rgba(0, 0, 0, 0.03);
            --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, 0.08);
            --radius-lg: 28px;
            --radius-md: 20px;
            --radius-sm: 14px;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: var(--bg-body);
            color: var(--text-dark);
            line-height: 1.6;
        }

        /* 头部与页脚 */
        .top-bar {
            background: var(--primary-dark);
            color: white;
            padding: 8px 20px;
            text-align: center;
            font-size: 13px;
        }
        .top-bar span {
            margin: 0 16px;
        }
        .navbar {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .nav-container {
            max-width: 1600px;
            margin: 0 auto;
            padding: 12px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .logo-icon { font-size: 30px; }
        .logo-text {
            font-size: 24px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .nav-links {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--text-mid);
            font-weight: 500;
            transition: 0.2s;
            font-size: 15px;
        }
        .nav-links a:hover { color: var(--primary); }
        .order-query {
            background: var(--primary-light);
            padding: 6px 18px;
            border-radius: 40px;
            color: var(--primary-dark) !important;
        }
        @media (max-width: 768px) {
            .nav-container { flex-direction: column; padding: 12px 20px; }
            .nav-links { gap: 18px; flex-wrap: wrap; justify-content: center; }
            .top-bar span { margin: 0 8px; font-size: 11px; }
        }

        /* 主要内容区 */
        .article-wrapper {
            max-width: 1200px;
            margin: 40px auto;
            padding: 0 24px;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 28px;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }

        /* 文章卡片主体 */
        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            margin-bottom: 48px;
        }
        .article-header {
            padding: 40px 48px 24px 48px;
            border-bottom: 1px solid var(--border);
        }
        .article-category {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 60px;
            margin-bottom: 20px;
        }
        .article-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.2;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 20px;
            margin-top: 8px;
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 极致紧凑销售板块：库存与价格同行，无图标，保留核心信息 ===== */
        .product-showcase {
            margin: 8px 48px 0px 48px;
            background: #ffffff;
            border-radius: 20px;
            border: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
            padding: 10px 14px 10px 14px;
        }
        .showcase-header {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
            border-left: 3px solid var(--accent);
            padding-left: 10px;
        }
        .showcase-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.2px;
        }
        .showcase-badge {
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 10px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 30px;
        }
        .product-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-top: 4px;
        }
        .product-card {
            background: var(--bg-card);
            border-radius: 14px;
            border: 1px solid var(--border);
            padding: 8px 10px 10px 10px;
            transition: all 0.2s ease;
            display: flex;
            flex-direction: column;
        }
        .product-card:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 10px -4px rgba(0, 0, 0, 0.05);
            border-color: var(--primary-light);
        }
        .product-name {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.35;
            margin-bottom: 6px;
            word-break: break-word;
        }
        /* 库存与价格同行 */
        .stock-price-row {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
            font-size: 13px;
        }
        .product-stock {
            font-size: 11px;
            color: var(--text-mid);
            background: var(--bg-soft);
            padding: 2px 8px;
            border-radius: 20px;
            line-height: 1.3;
            white-space: nowrap;
        }
        .product-price {
            font-size: 16px;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.2px;
            white-space: nowrap;
        }
        .product-price small {
            font-size: 10px;
            font-weight: 500;
            color: var(--text-mid);
        }
        .product-link {
            background: var(--primary-light);
            text-align: center;
            padding: 5px 8px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 11px;
            text-decoration: none;
            color: var(--primary-dark);
            transition: all 0.2s;
            display: block;
            width: 100%;
            margin-top: auto;
        }
        .product-link:hover {
            background: var(--primary);
            color: white;
        }
        .showcase-footer {
            margin-top: 10px;
            text-align: center;
            font-size: 10px;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 6px;
        }
        .showcase-footer a {
            color: var(--primary);
            text-decoration: none;
        }
        @media (max-width: 880px) {
            .product-showcase {
                margin: 0 24px 16px 24px;
                padding: 8px 12px 10px;
            }
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
        }
        @media (max-width: 550px) {
            .product-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .stock-price-row {
                flex-wrap: wrap;
            }
            .product-stock, .product-price {
                white-space: normal;
            }
        }

        .article-content {
            padding: 0px 48px 40px 48px;
            font-size: 16px;
            color: var(--text-mid);
        }
        .article-content p {
            margin-bottom: 1.5em;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 1.5em 0 0.8em;
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 1.2em 0 0.5em;
        }
        .article-content ul, .article-content ol {
            margin: 1em 0 1.5em 1.8em;
        }
        .article-content li {
            margin-bottom: 0.4em;
        }
        .article-content blockquote {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 1.5em 0;
            border-radius: var(--radius-sm);
            font-style: italic;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .tag {
            background: var(--bg-soft);
            color: var(--text-mid);
            padding: 5px 14px;
            border-radius: 60px;
            font-size: 12px;
        }

        /* 上一篇/下一篇导航 */
        .post-navigation {
            display: flex;
            justify-content: space-between;
            gap: 24px;
            padding: 28px 48px 36px 48px;
            border-top: 1px solid var(--border);
            background: var(--bg-card);
        }
        .nav-prev, .nav-next {
            flex: 1;
            min-width: 0;
        }
        .nav-next {
            text-align: right;
        }
        .nav-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: var(--text-light);
            margin-bottom: 8px;
            text-transform: uppercase;
        }
        .nav-title {
            display: block;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            text-decoration: none;
            line-height: 1.4;
            transition: color 0.2s;
            word-break: break-word;
        }
        .nav-title:hover {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .post-navigation .disabled {
            cursor: default;
            color: var(--text-light);
            opacity: 0.6;
        }
        @media (max-width: 700px) {
            .post-navigation {
                flex-direction: column;
                gap: 20px;
                padding: 24px 28px 32px 28px;
            }
            .nav-next {
                text-align: left;
            }
            .article-header, .article-content {
                padding: 28px 24px;
            }
            .article-content {
                padding: 20px 24px 32px;
            }
        }

        /* 相关推荐区域 */
        .related-section {
            margin-top: 24px;
        }
        .related-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 22px;
            transition: 0.25s;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .related-card .cat {
            font-size: 11px;
            background: var(--primary-light);
            display: inline-block;
            padding: 2px 10px;
            border-radius: 60px;
            margin-bottom: 12px;
            color: var(--primary-dark);
        }
        .related-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .related-card h4 a {
            text-decoration: none;
            color: var(--text-dark);
        }
        .related-card p {
            font-size: 13px;
            color: var(--text-mid);
            line-height: 1.5;
            margin-bottom: 12px;
        }
        .read-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 12px;
        }
        @media (max-width: 800px) {
            .article-title { font-size: 28px; }
            .related-grid { grid-template-columns: 1fr; }
        }

        /* 评论区 */
        .comment-section {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 28px 32px;
            margin-top: 32px;
        }
        .comment-title {
            font-weight: 700;
            margin-bottom: 20px;
            font-size: 18px;
        }
        .comment-placeholder {
            background: var(--bg-soft);
            border-radius: var(--radius-sm);
            padding: 32px;
            text-align: center;
            color: var(--text-light);
        }

        .footer {
            background: #1e2a3e;
            color: #a0b3d9;
            padding: 48px 28px 28px;
            margin-top: 60px;
        }
        .footer-inner {
            max-width: 1600px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 32px;
        }
        .footer-col h4 {
            color: #f0f3f8;
            margin-bottom: 16px;
            font-size: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 8px;
        }
        .footer-col a {
            color: #a0b3d9;
            text-decoration: none;
            font-size: 13px;
        }
        .footer-col a:hover {
            color: white;
        }
        .footer-bottom {
            text-align: center;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #2d3b4f;
            font-size: 12px;
        }