/*
Theme Name: portal16
Author: WP
Version: 1.0
Description: 全新随机色彩 WordPress 门户模板
*/
* { margin:0; padding:0; box-sizing:border-box }
body {
    font-family: "Microsoft YaHei", sans-serif;
    font-size:15px;
    color:#1f2937;
    background:#eff6ff;
    line-height:1.7;
}
a { color:#1f2937; text-decoration:none }
a:hover { color:#2563eb; }
img { max-width:100%; height:auto; border-radius:6px; display:block }
ul { list-style:none }

.tb_container { max-width:1200px; margin:0 auto; padding:0 15px }

/* 头部 科技蓝 */
.tb_header {
    background:#1e40af;
    padding:20px 0;
    margin-bottom:20px;
}
.tb_logo {
    font-size:24px;
    font-weight:bold;
    color:#ffffff;
}
.tb_logo a { color:#fff; }

/* 面包屑 */
.tb_bread {
    background:#fff;
    padding:12px 18px;
    border-radius:8px;
    font-size:13px;
    color:#64748b;
    margin-bottom:20px;
    border-left:3px solid #2563eb;
}

/* 布局 */
.tb_row { display:flex; gap:25px }
.tb_main { flex:1; padding-bottom:30px }
.tb_side { width:300px; padding-bottom:30px }

/* 标准瀑布流 */
.tb_masonry {
    display:grid;
    grid-template-columns:repeat(2, 1fr);
    gap:20px;
}

/* 文章卡片 */
.tb_card {
    background:#fff;
    padding:20px;
    border-radius:12px;
    box-shadow:0 2px 8px rgba(0,0,0,0.05);
    transition:all .3s;
}
.tb_card:hover { transform:translateY(-3px); }
.tb_thumb { border-radius:8px; overflow:hidden; margin-bottom:12px }
.tb_thumb img { width:100%; object-fit:cover; }
.tb_title { font-size:17px; font-weight:500; margin-bottom:6px }
.tb_meta { font-size:12px; color:#9ca3af; margin-bottom:8px }
.tb_desc { font-size:14px; color:#4b5563; line-height:1.6 }

/* 分页 */
.tb_pager {
    text-align:center;
    margin:30px 0;
}
.tb_pager a,.tb_pager span {
    display:inline-block;
    padding:8px 14px;
    background:#fff;
    border:1px solid #e5e7eb;
    border-radius:6px;
    margin:0 3px;
}
.tb_pager .current {
    background:#2563eb;
    color:#fff;
    border-color:#2563eb;
}

/* 侧边栏 */
.tb_widget {
    background:#fff;
    padding:20px;
    border-radius:12px;
    margin-bottom:20px;
}
.tb_widget h3 {
    font-size:16px;
    padding-bottom:10px;
    border-bottom:2px solid #1e40af;
    margin-bottom:15px;
}
.tb_side_item {
    display:flex;
    align-items:center;
    gap:10px;
    padding:8px 0;
    border-bottom:1px dashed #e5e7eb;
}
.tb_side_img {
    width:50px;
    height:50px;
    flex-shrink:0;
}
.tb_side_img img {
    width:100%;
    height:100%;
    object-fit:cover;
    border-radius:4px;
}
.tb_side_text {
    flex:1;
    font-size:14px;
    line-height:1.4;
}

/* 内容页 */
.tb_single {
    background:#fff;
    padding:40px;
    border-radius:12px;
    margin-bottom:20px;
}
.tb_single h1 {
    font-size:24px;
    text-align:center;
    margin-bottom:20px;
}
.tb_content {
    font-size:16px;
    line-height:1.9;
}

/* 上下篇 */
.tb_postnav {
    display:flex;
    justify-content:space-between;
    margin:25px 0;
}
.tb_postnav a {
    background:#fff;
    padding:12px 18px;
    border-radius:8px;
    border:1px solid #e5e7eb;
}

/* 文字列表 */
.tb_text_list a {
    display:block;
    padding:8px 0;
    font-size:14px;
    border-bottom:1px dashed #e5e7eb;
}
.tb_related {
    background:#fff;
    padding:25px;
    border-radius:12px;
    margin-top:20px;
}

/* 底部 */
.tb_footer {
    background:#1e40af;
    color:#fff;
    text-align:center;
    padding:25px 0;
    margin-top:20px;
    font-size:13px;
}

/* 移动端自适应 */
@media(max-width:900px) {
    .tb_row{flex-direction:column; gap:15px}
    .tb_side{width:100%}
    .tb_masonry{grid-template-columns:1fr; gap:15px}
    .tb_card{padding:15px}
    .tb_widget{padding:15px}
}