/* 博客系统 - 前台样式 (anzhiyu 风格)
 * @author 极客指北 @link https://www.90svip.cn */

/* ===== CSS 变量 ===== */
:root,[data-theme="light"]{
  --main:#425AEF;--main-op:#4259ef23;--bg:#f7f9fe;--card:#fff;
  --border:#e3e8f7;--text:#363636;--text2:rgba(60,60,67,.8);
  --shadow:0 8px 16px -4px #2c2d300c;--nav-shadow:0 5px 12px -5px rgba(102,68,68,.05);
}
[data-theme="dark"]{
  --main:#f2b94b;--main-op:#f2b94b23;--bg:#18171d;--card:#1d1e22;
  --border:#42444a;--text:#f7f7fa;--text2:#aaa;--shadow:none;--nav-shadow:none;
}

/* ===== 基础 ===== */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI','PingFang SC',sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:var(--main);text-decoration:none}

/* ===== 导航 ===== */
#header{position:fixed;top:0;width:100%;z-index:1000;background:var(--card);box-shadow:var(--nav-shadow);backdrop-filter:blur(10px)}
#nav{max-width:1200px;margin:0 auto;height:60px;display:flex;align-items:center;padding:0 20px}
.site-name{font-size:20px;font-weight:700;color:var(--text);margin-right:30px}
.nav-menu{display:flex;gap:4px;flex:1}
.nav-item{padding:8px 18px;border-radius:25px;font-size:14px;color:var(--text2);transition:all .3s}
.nav-item:hover{background:var(--main);color:#fff;box-shadow:0 4px 12px var(--main-op)}
.nav-right{display:flex;gap:4px}
.nav-btn{width:36px;height:36px;border:none;border-radius:50%;background:transparent;color:var(--text2);cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;transition:all .3s}
.nav-btn:hover{background:var(--main);color:#fff}
.hamburger{display:none}

/* ===== 搜索弹窗 ===== */
.search-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:2000;display:flex;align-items:center;justify-content:center}
.search-box{background:var(--card);padding:20px;border-radius:12px;width:500px;max-width:90%;display:flex;gap:10px}
.search-box input{flex:1;padding:12px;border:1px solid var(--border);border-radius:25px;font-size:16px;outline:none;background:var(--bg);color:var(--text)}
.search-box button{border:none;background:var(--main);color:#fff;width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:18px}

/* ===== 主布局 ===== */
#main-container{max-width:1200px;margin:80px auto 0;padding:20px;display:flex;gap:20px}
#content{flex:1;min-width:0}
#sidebar{width:300px;flex-shrink:0}

/* ===== 文章网格 ===== */
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

/* ===== 文章卡片 ===== */
.article-card{background:var(--card);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);transition:.3s}
.article-card:hover{transform:translateY(-3px);box-shadow:0 3px 8px 6px rgba(7,17,27,.09)}
.card-cover{display:block;overflow:hidden;height:180px}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:.3s}
.article-card:hover .card-cover img{transform:scale(1.05)}
.card-info{padding:20px}
.card-cat{display:inline-block;padding:4px 12px;background:var(--main-op);color:var(--main);border-radius:12px;font-size:12px;margin-bottom:8px}
.card-title{font-size:18px;margin-bottom:8px;line-height:1.4}
.card-title a{color:var(--text)}
.card-title a:hover{color:var(--main)}
.card-meta{font-size:13px;color:var(--text2);display:flex;gap:12px}

/* ===== Hero ===== */
.hero{text-align:center;padding:60px 20px;background:linear-gradient(135deg,var(--main),#cf0db9);color:#fff;border-radius:12px;margin-bottom:30px;animation:fadeInUp .6s ease}
.hero h1{font-size:36px;margin-bottom:10px}
.hero p{font-size:16px;opacity:.9}
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* ===== 文章详情 ===== */
.post{background:var(--card);border-radius:12px;padding:30px;box-shadow:var(--shadow)}
.post-cover{margin:-30px -30px 20px;border-radius:12px 12px 0 0;overflow:hidden}
.post-cover img{width:100%;max-height:400px;object-fit:cover}
.post-title{font-size:28px;margin-bottom:15px}
.post-meta{font-size:14px;color:var(--text2);margin-bottom:30px;display:flex;gap:15px}
.post-content{font-size:16px;line-height:2}
.post-content pre{background:#282c34;color:#abb2bf;padding:20px;border-radius:12px;overflow-x:auto;font-size:14px}
.post-content img{max-width:100%;border-radius:8px}
.post-content blockquote{border-left:4px solid var(--main);padding:10px 20px;margin:16px 0;background:var(--bg);border-radius:0 8px 8px 0}
.post-tags{margin-top:30px;display:flex;gap:8px;flex-wrap:wrap}
.post-nav{margin-top:30px;display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--border);padding-top:20px}
.post-nav a{color:var(--main);font-size:14px}

/* ===== 卡片组件 ===== */
.card-widget{background:var(--card);border-radius:12px;padding:20px;box-shadow:var(--shadow);margin-bottom:20px}
.widget-title{font-size:16px;font-weight:600;margin-bottom:12px;color:var(--text)}
.widget-link{display:block;padding:6px 0;font-size:14px;color:var(--text2);border-bottom:1px solid var(--border)}
.widget-link:hover{color:var(--main)}
.author-card{text-align:center;position:relative;overflow:hidden}
.author-bg{position:absolute;top:0;left:0;width:100%;height:100px;background:linear-gradient(-25deg,var(--main),#cf0db9,var(--main));animation:gradient 15s ease infinite;background-size:400%}
.author-avatar{width:70px;height:70px;border-radius:50%;background:var(--main);color:#fff;font-size:28px;line-height:70px;margin:60px auto 10px;position:relative;border:3px solid var(--card)}
.author-name{font-size:18px;font-weight:600}
.author-desc{font-size:13px;color:var(--text2);margin-top:4px}
@keyframes gradient{0%,100%{background-position:0 50%}50%{background-position:100% 50%}}

/* ===== 标签云 ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-chip{display:inline-block;padding:4px 12px;background:var(--main-op);color:var(--main);border-radius:12px;font-size:13px;transition:.3s}
.tag-chip:hover{background:var(--main);color:#fff}

/* ===== 友链 ===== */
.link-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.link-card{display:flex;align-items:center;gap:12px;padding:15px;background:var(--card);border-radius:12px;box-shadow:var(--shadow);transition:.3s}
.link-card:hover{transform:translateY(-2px)}
.link-card img{width:48px;height:48px;border-radius:12px}
.link-info strong{display:block;font-size:15px;color:var(--text)}
.link-info small{display:block;font-size:12px;color:var(--text2);margin-top:2px}

/* ===== 分页 ===== */
.pagination{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:30px}
.pagination a,.pagination span{padding:8px 16px;border-radius:8px;font-size:14px;background:var(--card);color:var(--text2);box-shadow:var(--shadow)}
.pagination a:hover{background:var(--main);color:#fff}
.page-title{font-size:24px;margin-bottom:20px}
.page-title small{font-size:16px;color:var(--text2);font-weight:400}

/* ===== 页脚 ===== */
#footer{text-align:center;padding:40px 20px;color:var(--text2);font-size:13px;margin-top:40px}
#footer p{margin:4px 0}

/* ===== 响应式 ===== */
@media(max-width:900px){
  .article-grid{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  #sidebar{display:none}
}
@media(max-width:768px){
  .nav-menu{display:none;position:fixed;top:60px;left:0;width:100%;background:var(--card);flex-direction:column;padding:10px;box-shadow:var(--nav-shadow)}
  .nav-menu.open{display:flex}
  .hamburger{display:flex}
  #content{padding:0}
  .post{padding:20px}
}