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

        html, body {
            width: 100%;
            height: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

        /* 导航栏样式 */
        .fbcw-navbar {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .fbcw-nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .fbcw-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: white;
            font-weight: bold;
            font-size: 1.5rem;
            text-decoration: none;
        }

        .fbcw-logo img {
            max-width: 40px;
            height: auto;
        }

        .fbcw-nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .fbcw-nav-link {
            color: white;
            text-decoration: none;
            font-size: 0.95rem;
            transition: opacity 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }

        .fbcw-nav-link:hover {
            opacity: 0.8;
            background-color: rgba(255, 255, 255, 0.1);
        }

        /* 主容器 */
        .fbcw-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* 页头区域 */
        .fbcw-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 4rem 2rem;
            text-align: center;
            margin-bottom: 3rem;
        }

        .fbcw-header h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .fbcw-header-desc {
            font-size: 1.1rem;
            opacity: 0.95;
            margin-bottom: 1.5rem;
        }

        .fbcw-breadcrumb {
            display: flex;
            gap: 0.5rem;
            justify-content: center;
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .fbcw-breadcrumb a {
            color: white;
            text-decoration: none;
            transition: opacity 0.3s;
        }

        .fbcw-breadcrumb a:hover {
            opacity: 0.7;
        }

        /* 主内容区 */
        .fbcw-content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .fbcw-main-content {
            background: white;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .fbcw-sidebar {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            height: fit-content;
        }

        /* 文章样式 */
        .fbcw-article h2 {
            font-size: 1.8rem;
            color: #667eea;
            margin-top: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #667eea;
        }

        .fbcw-article h3 {
            font-size: 1.3rem;
            color: #764ba2;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }

        .fbcw-article p {
            margin-bottom: 1rem;
            line-height: 1.8;
            color: #555;
        }

        .fbcw-article ol, .fbcw-article ul {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }

        .fbcw-article li {
            margin-bottom: 0.5rem;
            color: #555;
        }

        .fbcw-highlight-box {
            background: #f0f4ff;
            border-left: 4px solid #667eea;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 4px;
        }

        .fbcw-highlight-box strong {
            color: #667eea;
        }

        .fbcw-step-box {
            background: #fff3e0;
            border-left: 4px solid #ff9800;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 4px;
        }

        .fbcw-code-block {
            background: #2d2d2d;
            color: #f8f8f2;
            padding: 1.5rem;
            border-radius: 4px;
            overflow-x: auto;
            margin: 1rem 0;
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            line-height: 1.5;
        }

        /* 表格样式 */
        .fbcw-table-wrapper {
            overflow-x: auto;
            margin: 1.5rem 0;
        }

        .fbcw-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
        }

        .fbcw-table th {
            background: #667eea;
            color: white;
            padding: 1rem;
            text-align: left;
            font-weight: 600;
        }

        .fbcw-table td {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #e0e0e0;
        }

        .fbcw-table tr:hover {
            background: #f5f5f5;
        }

        /* 侧边栏 */
        .fbcw-sidebar-title {
            font-size: 1.2rem;
            color: #667eea;
            margin-bottom: 1.5rem;
            font-weight: 600;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #667eea;
        }

        .fbcw-sidebar-item {
            margin-bottom: 1rem;
        }

        .fbcw-sidebar-item a {
            color: #667eea;
            text-decoration: none;
            font-size: 0.95rem;
            transition: color 0.3s;
        }

        .fbcw-sidebar-item a:hover {
            color: #764ba2;
            text-decoration: underline;
        }

        /* FAQ区域 */
        .fbcw-faq-section {
            margin-top: 3rem;
        }

        .fbcw-faq-item {
            margin-bottom: 1rem;
            border: 1px solid #e0e0e0;
            border-radius: 4px;
            overflow: hidden;
        }

        .fbcw-faq-question {
            background: #f8f9fa;
            padding: 1.2rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s;
        }

        .fbcw-faq-question:hover {
            background: #f0f4ff;
        }

        .fbcw-faq-question strong {
            color: #333;
        }

        .fbcw-faq-toggle {
            color: #667eea;
            font-size: 1.5rem;
            transition: transform 0.3s;
        }

        .fbcw-faq-item.active .fbcw-faq-toggle {
            transform: rotate(180deg);
        }

        .fbcw-faq-answer {
            display: none;
            padding: 1.5rem;
            background: white;
            color: #555;
            line-height: 1.8;
        }

        .fbcw-faq-item.active .fbcw-faq-answer {
            display: block;
        }

        /* CTA区域 */
        .fbcw-cta-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 3rem 2rem;
            text-align: center;
            border-radius: 8px;
            margin: 3rem 0;
        }

        .fbcw-cta-title {
            font-size: 2rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .fbcw-cta-text {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            opacity: 0.95;
        }

        .fbcw-cta-button {
            display: inline-block;
            background: white;
            color: #667eea;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            transition: transform 0.3s, box-shadow 0.3s;
            border: none;
            cursor: pointer;
        }

        .fbcw-cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }

        /* 页脚 */
        .fbcw-footer {
            background: #2c3e50;
            color: white;
            padding: 3rem 2rem;
            margin-top: 3rem;
        }

        .fbcw-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .fbcw-footer-section h4 {
            font-size: 1.1rem;
            margin-bottom: 1rem;
            color: #667eea;
        }

        .fbcw-footer-section ul {
            list-style: none;
        }

        .fbcw-footer-section li {
            margin-bottom: 0.5rem;
        }

        .fbcw-footer-section a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }

        .fbcw-footer-section a:hover {
            color: #667eea;
        }

        .fbcw-footer-bottom {
            border-top: 1px solid #34495e;
            padding-top: 2rem;
            text-align: center;
            color: #95a5a6;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .fbcw-header h1 {
                font-size: 1.8rem;
            }

            .fbcw-nav-links {
                gap: 1rem;
                font-size: 0.85rem;
            }

            .fbcw-content-wrapper {
                grid-template-columns: 1fr;
            }

            .fbcw-sidebar {
                order: -1;
            }

            .fbcw-article h2 {
                font-size: 1.5rem;
            }

            .fbcw-footer-content {
                grid-template-columns: 1fr;
            }

            .fbcw-cta-title {
                font-size: 1.5rem;
            }

            .fbcw-nav-container {
                padding: 0 1rem;
            }

            .fbcw-main-content {
                padding: 1.5rem;
            }
        }

        @media (max-width: 480px) {
            .fbcw-header {
                padding: 2rem 1rem;
            }

            .fbcw-header h1 {
                font-size: 1.4rem;
            }

            .fbcw-nav-links {
                gap: 0.5rem;
            }

            .fbcw-nav-link {
                padding: 0.3rem 0.5rem;
                font-size: 0.8rem;
            }

            .fbcw-breadcrumb {
                flex-direction: column;
                gap: 0.2rem;
            }

            .fbcw-article ol, .fbcw-article ul {
                margin-left: 1.5rem;
            }
        }

        /* 工具提示 */
        .fbcw-tooltip-icon {
            display: inline-block;
            width: 20px;
            height: 20px;
            background: #667eea;
            color: white;
            border-radius: 50%;
            text-align: center;
            line-height: 20px;
            font-size: 0.8rem;
            cursor: help;
            margin-left: 0.5rem;
        }

        /* 成功提示 */
        .fbcw-success-box {
            background: #e8f5e9;
            border-left: 4px solid #4caf50;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 4px;
            color: #2e7d32;
        }

        /* 警告提示 */
        .fbcw-warning-box {
            background: #fff3cd;
            border-left: 4px solid #ffc107;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 4px;
            color: #856404;
        }