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

        body {
            font-family: 'Segoe UI', system-ui, -apple-system, 'Inter', 'SF Pro Text', 'PingFang SC', 'Microsoft YaHei', Roboto, Helvetica, Arial, sans-serif;
            background: #f5f7fc;
            color: #1a2c3e;
            line-height: 1.5;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(2px);
            box-shadow: 0 1px 3px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid #eef2f6;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.9rem 0;
        }

        .logo-area {
    display: flex;
    align-items: center;
}

.logo {
    width: 120px;   /* 根据需要调整大小 */
    height: auto;   /* 保持比例 */
    margin-right: 10px; /* 与文字徽章保持间距 */
}

.badge {
    font-size: 14px;
    color: #fff;
    background-color: #007bff;
    padding: 4px 8px;
    border-radius: 4px;
}


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

        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #2c3e4e;
            transition: color 0.2s;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #1f8cad;
            border-bottom: 2px solid #1f8cad;
            padding-bottom: 4px;
        }

        .page-header {
            margin: 2rem 0 1rem;
        }

        .page-title {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, #1c2e3a, #1f6e8c);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 0.5rem;
        }

        .faq-subhead {
            color: #2c5368;
            font-size: 1.1rem;
            margin-bottom: 2rem;
            border-left: 4px solid #1f8cad;
            padding-left: 1rem;
        }

        .faq-categories {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 2rem;
            border-bottom: 1px solid #e2edf2;
            padding-bottom: 1rem;
        }

        .category-btn {
            background: transparent;
            border: none;
            padding: 0.5rem 1.2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            font-size: 0.9rem;
            transition: all 0.2s;
            color: #3d6e8b;
        }

        .category-btn.active {
            background: #1f6e8c;
            color: white;
            box-shadow: 0 2px 8px rgba(31,110,140,0.2);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-bottom: 3rem;
        }

        .faq-item {
            background: white;
            border-radius: 1.2rem;
            border: 1px solid #eef2f8;
            overflow: hidden;
            transition: box-shadow 0.2s;
        }

        .faq-question {
            padding: 1.2rem 1.6rem;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: white;
            transition: background 0.2s;
        }

        .faq-question:hover {
            background: #f9fbfe;
        }

        .faq-question .icon {
            font-size: 1.4rem;
            color: #1f8cad;
            transition: transform 0.2s;
        }

        .faq-answer {
            padding: 0 1.6rem 1.2rem 1.6rem;
            border-top: 1px solid #eef2f8;
            background: #fefefe;
            display: none;
            line-height: 1.6;
            color: #2a4b5e;
        }

        .faq-answer.show {
            display: block;
        }

        .faq-answer p {
            margin: 0.8rem 0;
        }

        .faq-answer code {
            background: #eef2f6;
            padding: 0.2rem 0.4rem;
            border-radius: 8px;
            font-family: monospace;
            font-size: 0.85rem;
        }

        .faq-answer ul, .faq-answer ol {
            margin-left: 1.5rem;
            margin-top: 0.5rem;
        }

        .highlight {
            background: #e6f4f9;
            padding: 0.8rem;
            border-radius: 0.8rem;
            margin: 0.8rem 0;
        }

        .contact-support {
            background: #eaf4f8;
            border-radius: 1.5rem;
            padding: 2rem;
            text-align: center;
            margin: 2rem 0;
        }

        footer {
            background: #0f212e;
            color: #cddfe7;
            padding: 2rem 0;
            margin-top: 1rem;
            border-radius: 1.5rem 1.5rem 0 0;
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .footer-links a {
            color: #bcd4df;
            text-decoration: none;
            margin-left: 1.5rem;
        }

        @media (max-width: 760px) {
            .header-inner {
                flex-direction: column;
                gap: 0.8rem;
            }
            .nav-links {
                gap: 1rem;
                flex-wrap: wrap;
                justify-content: center;
            }
            .page-title {
                font-size: 1.9rem;
            }
            .faq-question {
                padding: 1rem;
                font-size: 1rem;
            }
        }