/* ====================== 全局重置 ====================== */
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}
html{
    scroll-behavior: smooth;
}
body{
    font-family: 'Arial',sans-serif;
    color:#333;
    line-height:1.6;
    background:#ffffff;
}
ul{
    list-style:none;
}
a{
    text-decoration:none;
    color:inherit;
    transition: all 0.25s ease;
}
img{
    max-width:100%;
    height:auto;
    display:block;
}
button{
    cursor:pointer;
    border:none;
    background:none;
}
.container{
    width:92%;
    max-width:1260px;
    margin:0 auto;
}

/* 按钮通用样式 */
.btn{
    display:inline-block;
    padding:11px 24px;
    font-weight:600;
    font-size:14px;
    text-transform:uppercase;
}
.btn-primary{
    background:#ff5722;
    color:#fff;
}
.btn-primary:hover{
    background:#e24a18;
}

/* ====================== 头部 Header ====================== */
.header-top{
    background:#181818;
    color:#fff;
    font-size:13px;
    padding:8px 0;
}
.header-top-inner{
    display:flex;
    justify-content:space-between;
    align-items:center;
}
.header-top-right{
    display:flex;
    gap:24px;
    align-items:center;
}
.header-top-right a{
    color:#fff;
}
.header-top-right a:hover{
    color:#ff5722;
}
.header-nav{
    background:#fff;
    padding:16px 0;
    box-shadow:0 1px 4px rgba(0,0,0,0.08);
}
.nav-inner{
    display:flex;
    justify-content:space-between;
    align-items:center;
}
.site-logo img{
    height:46px;
}
.main-navigation .menu-list{
    display:flex;
    gap:28px;
    align-items:center;
}
.menu-list li a{
    font-size:14px;
    font-weight:500;
    text-transform:uppercase;
    color:#222;
}
.menu-list li.active a{
    color:#ff5722;
}
.menu-list li a:hover{
    color:#ff5722;
}
.mobile-menu-toggle{
    font-size:24px;
    display:none;
}

/* ====================== 页面横幅 ====================== */
.page-banner{
    height:340px;
    background:linear-gradient(rgba(0,0,0,0.55),rgba(0,0,0,0.55)), url("../images/banner.jpg") center / cover no-repeat;
    display:flex;
    align-items:center;
}
.banner-content{
    color:#fff;
}
.banner-content h1{
    font-size:44px;
    margin-bottom:14px;
    position:relative;
}
.banner-content h1::after{
    content:"";
    width:45px;
    height:3px;
    background:#ff5722;
    display:block;
    margin-top:8px;
}
.banner-content p{
    font-size:16px;
    opacity:0.92;
    line-height:1.7;
}

/* 面包屑 */
.breadcrumb-wrap{
    padding:18px 0;
    font-size:14px;
}
.breadcrumb a{
    color:#ff5722;
}
.breadcrumb .current{
    color:#666;
}

/* ====================== Blog主布局 ====================== */
.main-content-wrap{
    display:grid;
    grid-template-columns:280px 1fr;
    gap:36px;
    padding:40px 0 60px;
}

/* 侧边栏 */
.blog-sidebar .widget{
    margin-bottom:32px;
    background:#f8f8f8;
    padding:22px;
}
.widget-title{
    font-size:16px;
    margin-bottom:16px;
    text-transform:uppercase;
    letter-spacing:0.4px;
}
/* 搜索框 */
.search-form{
    display:grid;
    grid-template-columns:1fr 44px;
}
.search-input{
    padding:10px 12px;
    border:1px solid #ddd;
    outline:none;
}
.search-submit{
    background:#222;
    color:#fff;
}
/* 分类列表 */
.category-list li{
    padding:7px 0;
    border-bottom:1px solid #eee;
    font-size:14px;
}
.category-list li a{
    display:flex;
    justify-content:space-between;
}
.category-list li a:hover{
    color:#ff5722;
}
/* 热门文章 */
.popular-post-list .popular-post-item{
    display:grid;
    grid-template-columns:60px 1fr;
    gap:10px;
    margin-bottom:14px;
}
.popular-post-item img{
    width:60px;
    height:60px;
    object-fit:cover;
}
.post-info a{
    font-size:13px;
    line-height:1.4;
}
.post-info a:hover{
    color:#ff5722;
}
.post-date{
    display:block;
    font-size:11px;
    color:#777;
    margin-top:4px;
}
/* CTA广告组件 */
.widget-banner-cta{
    background:#181818 !important;
    color:#fff;
}
.widget-banner-cta p{
    margin:12px 0 18px;
    font-size:14px;
}

/* ====================== 博客内容区域 ====================== */
.blog-filter-tabs{
    display:flex;
    flex-wrap:wrap;
    gap:6px;
    margin-bottom:30px;
    border-bottom:1px solid #eee;
    padding-bottom:12px;
}
.tab-link{
    padding:6px 10px;
    font-size:14px;
}
.tab-link.active{
    color:#ff5722;
    border-bottom:2px solid #ff5722;
}
.blog-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:28px;
}
.blog-card{
    background:#fff;
}
.blog-card-img img{
    width:100%;
    height:200px;
    object-fit:cover;
}
.blog-card-date{
    display:inline-block;
    background:#222;
    color:#fff;
    font-size:12px;
    padding:4px 10px;
    margin-top:12px;
}
.blog-card-title{
    font-size:17px;
    margin:10px 0;
    line-height:1.4;
}
.blog-card-title a:hover{
    color:#ff5722;
}
.blog-card-excerpt{
    font-size:14px;
    color:#555;
    margin-bottom:12px;
}
.read-more{
    font-size:13px;
    color:#ff5722;
    font-weight:600;
}
.read-more:hover{
    padding-left:4px;
}

/* 分页 */
.pagination{
    display:flex;
    gap:8px;
    margin-top:44px;
    justify-content:center;
    align-items:center;
}
.page-link{
    width:36px;
    height:36px;
    display:grid;
    place-items:center;
    border:1px solid #ddd;
    font-size:14px;
}
.page-link.active{
    background:#ff5722;
    border-color:#ff5722;
    color:#fff;
}
.next-page{
    width:auto;
    padding:0 14px;
}

/* ====================== 底部优势栏 ====================== */
.feature-bar{
    background:#f8f8f8;
    padding:40px 0;
}
.feature-inner{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
}
.feature-item{
    text-align:center;
}
.feature-item i{
    font-size:30px;
    color:#ff5722;
    margin-bottom:12px;
}
.feature-item h4{
    font-size:16px;
    margin-bottom:6px;
}
.feature-item p{
    font-size:13px;
    color:#555;
}

/* ====================== Footer ====================== */
.site-footer{
    background:#181818;
    color:#cacaca;
    padding:50px 0 20px;
}
.footer-inner{
    display:grid;
    grid-template-columns:1.4fr repeat(4,1fr);
    gap:32px;
    margin-bottom:40px;
}
.footer-logo img{
    height:44px;
    margin-bottom:14px;
}
.footer-col h4{
    color:#fff;
    font-size:16px;
    margin-bottom:18px;
    text-transform:uppercase;
}
.footer-link-list li{
    margin-bottom:9px;
    font-size:14px;
}
.footer-link-list li a:hover{
    color:#ff5722;
}
.footer-contact-list li{
    margin-bottom:10px;
    font-size:14px;
    display:flex;
    gap:8px;
}
.footer-contact-list i{
    color:#ff5722;
    width:16px;
}
.footer-social{
    display:flex;
    gap:12px;
    margin-top:16px;
}
.footer-social a{
    width:34px;
    height:34px;
    border:1px solid #444;
    display:grid;
    place-items:center;
}
.footer-social a:hover{
    background:#ff5722;
    border-color:#ff5722;
    color:#fff;
}
.footer-bottom{
    border-top:1px solid #333;
    padding-top:20px;
    display:flex;
    justify-content:space-between;
    font-size:13px;
}
.footer-bottom-links{
    display:flex;
    gap:20px;
}
.footer-bottom-links a:hover{
    color:#ff5722;
}

/* ====================== 响应式适配 ====================== */
@media screen and (max-width:1024px){
    .main-content-wrap{
        grid-template-columns:1fr;
    }
    .blog-grid{
        grid-template-columns:repeat(2,1fr);
    }
    .footer-inner{
        grid-template-columns:repeat(2,1fr);
    }
    .feature-inner{
        grid-template-columns:repeat(2,1fr);
    }
    .main-navigation{
        display:none;
    }
    .mobile-menu-toggle{
        display:block;
    }
}
@media screen and (max-width:768px){
    .blog-grid{
        grid-template-columns:1fr;
    }
    .page-banner{
        height:260px;
    }
    .banner-content h1{
        font-size:32px;
    }
    .footer-inner{
        grid-template-columns:1fr;
    }
    .header-top-inner{
        flex-direction:column;
        gap:8px;
    }
    .header-top-right{
        flex-wrap:wrap;
        justify-content:center;
    }
}