*{margin:0;padding:0;box-sizing:border-box;font-family:"Microsoft Yahei",sans-serif;}
        ul,li{list-style:none;}
        a{text-decoration:none;color:#333;}

        /* 导航头部 */
        .header{width:100%;background:#ffffff;box-shadow:0 1px 4px #eee;position:sticky;top:0;z-index:99;}
        .header-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;height:60px;padding:0 20px;}
        .logo{font-size:18px;font-weight:bold;color:#2b5cb8;}
        .nav-menu{display:flex;gap:40px;}
        .nav-menu a{font-size:14px;color:#444;transition:0.2s;}
        .nav-menu a:hover{color:#2b5cb8;}

        /* Banner背景图可自行更换 */
        .banner{
            width:100%;
            background: linear-gradient(rgb(255 255 255 / 0%), rgba(255, 255, 255, 0.85)), url(../images/bg.webp);
            background-size:cover;
            background-position:center;
            padding:140px 20px;
        }
        .banner-wrap{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:40px;flex-wrap:wrap;}
        .banner-text{flex:1;min-width:300px;}
        .banner-text h1{font-size:50px;color:#222;margin-bottom:16px;}
        .banner-text p{font-size:15px;color:#555;line-height:1.7;margin-bottom:24px;}
        .btn-blue{display:inline-block;background:#2b5cb8;color:#fff;padding:10px 22px;border-radius:4px;font-size:18px;}
        .banner-img{flex:1;min-width:350px;}
        .banner-img img{width:100%;}

        /* 通用区块 */
        .section{padding:70px 20px;max-width:1200px;margin:0 auto;}
        .section-title{text-align:center;font-size:35px;color:#222;margin-bottom:28px;}
        .section-subtitle{text-align:center;font-size:16px;color:#666;margin-bottom:50px;}

        /* ==========论文格式检测优势【已优化清爽大气】========== */
        .advantage-row{display:flex;gap:28px;flex-wrap:wrap;justify-content:center;}
        .advantage-item{width:180px;text-align:center;}
        .advantage-icon{
            width:72px;
            height:72px;
            margin:0 auto 16px;
            display:flex;
            align-items:center;
            justify-content:center;
            background:#ffffff;
            border:1px solid #e8edf6;
            border-radius:12px;
        }
        .advantage-icon svg{
            width:40px;
            height:40px;
        }
        .advantage-item h3{font-size:20px;margin-bottom:10px;color:#222;}
        .advantage-item p{font-size:14px;color:#666;line-height:1.7;}

        /* 主要功能模块 */
        .func-wrap{background:#f8f9fb;width:100%;padding:100px 0;}
        .func-container{max-width:1200px;margin:0 auto;padding:0 20px;}
        .tabs-nav{display:flex;justify-content:space-between;margin-bottom:30px;border-bottom:1px solid #e5e7eb;}
        .tabs-nav span{flex:1;text-align:center;font-size:20px;color:#444;padding-bottom:14px;cursor:pointer;position:relative;}
        .tabs-nav span.active{color:#2b5cb8;}
        .tabs-nav span.active::after{content:"";position:absolute;bottom:-1px;left:0;width:100%;height:2px;background:#2b5cb8;}

        .tab-panel{display:none;}
        .tab-panel.active{display:block;}
        .tab-desc{font-size:15px;color:#333;line-height:1.8;margin-bottom:24px;}
        .tab-list{}
        .tab-list .item{margin-bottom:16px;}
        .tab-list .item h4{font-size:16px;color:#2b5cb8;margin-bottom:6px;}
        .tab-list .item p{font-size:15px;color:#222;line-height:1.7;}

        /* 报告样例截图展示 */
        .demo-img-area{margin-top:50px;display:flex;flex-direction:column;gap:32px;}
        .demo-card{width:100%;background:#fff;border-radius:12px;box-shadow:0 2px 14px #e2e6f0;overflow:hidden;}
        .demo-card img{width:100%;display:block;}

        /* 应用场景板块 */
        .scene-row{display:flex;gap:24px;flex-wrap:wrap;}
        .scene-card{flex:1;min-width:260px;background:#f4f7fc;padding:30px 24px;border-radius:10px;}
        .scene-card h3{font-size:18px;margin-bottom:14px;color:#222;}
        .scene-card p{font-size:14px;color:#555;line-height:1.7;}

        /* 用户评价板块 */
        .review-wrap{background:#f8f9fb;width:100%;padding:70px 0;}
        .review-row{display:flex;gap:24px;flex-wrap:wrap;}
        .review-card{flex:1;min-width:280px;background:#ffffff;border-radius:12px;padding:28px 24px;box-shadow:0 2px 12px #e8ebf2;}
        .review-star{color:#ffb800;font-size:18px;margin-bottom:12px;}
        .review-text{font-size:14px;color:#444;line-height:1.7;margin-bottom:18px;}
        .review-user{display:flex;align-items:center;gap:12px;}
        .review-avatar{width:40px;height:40px;border-radius:50%;background:#dce2f7;display:flex;align-items:center;justify-content:center;color:#2b5cb8;font-weight:bold;}
        .review-name{font-size:14px;color:#222;}
        .review-tag{font-size:12px;color:#888;}

        /* FAQ常见问题 */
        .faq-wrap{background:#ffffff;width:100%;padding:70px 0;}
        .faq-item{background:#f8f9fb;padding:20px 24px;margin-bottom:14px;border-radius:8px;}
        .faq-item h4{font-size:16px;color:#222;margin-bottom:10px;}
        .faq-item p{font-size:14px;color:#555;line-height:1.7;}

        /* 价值体现 */
        .value-row{display:flex;gap:40px;align-items:center;flex-wrap:wrap;}
        .value-img{flex:1;min-width:320px;}
        .value-img img{width:100%;border-radius:8px;}
        .value-text{flex:1;min-width:300px;}
        .value-text h3{font-size:20px;margin-bottom:16px;color:#222;}
        .value-text p{font-size:14px;color:#555;line-height:1.7;}

        /* 页脚 */
        .footer{background:#282c3a;color:#c5c7ce;padding:50px 20px;margin-top:30px;}
        .footer-inner{max-width:1200px;margin:0 auto;display:flex;flex-wrap:wrap;gap:40px;}
        .footer-col{min-width:200px;}
        .footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
        .footer-col p,.footer-col a{font-size:13px;color:#b8bbc8;line-height:2;padding:2px 0;display:block;}
        .copyright{width:100%;margin-top:30px;text-align:center;font-size:12px;color:#888;padding-top:20px;border-top:1px solid #3a3f4e;}

        /* 移动端适配 */
        @media(max-width:768px){
            .nav-menu{gap:18px;}
            .banner-text h1{font-size:24px;}
            .tabs-nav span{font-size:15px;}
            .section-title{font-size:22px;}
            .advantage-item{width:140px;}
        }