/* ==================== 全局 ==================== */
:root{
  --primary:#2563eb;--primary-dark:#1d4ed8;--primary-light:#eff6ff;
  --text:#1f2937;--text-muted:#6b7280;--border:#e5e7eb;--bg:#f8fafc;--card:#fff;
  --radius:10px;--shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-hover:0 4px 12px rgba(0,0,0,.1);
  --container:1240px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;font-size:15px}
a{color:var(--primary);text-decoration:none;transition:color .15s}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
.clearfix::after{content:"";display:table;clear:both}
.container-fluid{max-width:var(--container);margin:0 auto;padding:0 16px}
small{font-size:.8em}

/* ==================== Header ==================== */
.site-header{background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}
.header-inner{max-width:var(--container);margin:0 auto;padding:0 16px;height:64px;display:flex;align-items:center;gap:20px}
.site-logo{font-size:20px;font-weight:700;color:var(--primary);white-space:nowrap}
.site-logo i{font-size:22px}
.site-logo:hover{color:var(--primary-dark)}
.site-nav{display:flex;align-items:center;gap:4px;flex:1}
.site-nav>a{padding:8px 14px;border-radius:6px;color:var(--text);font-weight:500;font-size:15px}
.site-nav>a:hover,.site-nav>a.active{background:var(--primary-light);color:var(--primary)}
.nav-drop{position:relative;padding:8px 14px;cursor:pointer;font-weight:500;border-radius:6px}
.nav-drop:hover{background:var(--primary-light)}
.nav-drop>i{font-size:11px;opacity:.6}
.nav-drop-menu{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow-hover);padding:6px;min-width:140px;display:none;flex-direction:column}
.nav-drop:hover .nav-drop-menu{display:flex}
.nav-drop-menu a{padding:8px 12px;border-radius:4px;color:var(--text)}
.nav-drop-menu a:hover{background:var(--primary-light);color:var(--primary)}
.site-search{margin-left:auto}
.site-search form{display:flex;border:1px solid var(--border);border-radius:20px;overflow:hidden;background:#f9fafb}
.site-search input{border:none;background:transparent;padding:8px 14px;outline:none;width:200px;font-size:14px}
.site-search button{border:none;background:transparent;color:var(--text-muted);padding:0 12px;cursor:pointer;font-size:15px}
.site-search button:hover{color:var(--primary)}
.header-user{display:flex;align-items:center;gap:8px}
.header-user .btn-login,.header-user .btn-register{padding:6px 14px;border-radius:6px;font-size:14px;font-weight:500}
.header-user .btn-login{color:var(--primary);border:1px solid var(--primary)}
.header-user .btn-login:hover{background:var(--primary-light)}
.header-user .btn-register{background:var(--primary);color:#fff;border:1px solid var(--primary)}
.header-user .btn-register:hover{background:var(--primary-dark)}
.user-chip{display:flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;background:var(--primary-light);color:var(--primary);font-weight:500;font-size:14px}
.user-chip img{width:24px;height:24px;border-radius:50%}
.user-chip i{font-size:18px}

/* ==================== 公告条 ==================== */
.notice-bar{background:#fef9c3;border-bottom:1px solid #fde68a}
.notice-inner{max-width:var(--container);margin:0 auto;padding:8px 16px;display:flex;align-items:center;gap:10px;overflow:hidden}
.notice-inner>i{color:#ca8a04;flex-shrink:0}
.notice-list{display:flex;gap:30px;flex:1;list-style:none}
.notice-list li{white-space:nowrap}
.notice-list a{color:#854d0e;font-size:13px}
.notice-list a:hover{color:#713f12;text-decoration:underline}

/* ==================== 面包屑 ==================== */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--border)}
.site-breadcrumb{max-width:var(--container);margin:0 auto;padding:10px 16px;font-size:13px;color:var(--text-muted)}
.site-breadcrumb i{margin-right:4px}
.site-breadcrumb a{color:var(--text-muted)}
.site-breadcrumb a:hover{color:var(--primary)}

/* ==================== 主内容 ==================== */
.site-main{display:block;padding:20px 0}
.main-inner{max-width:var(--container);margin:0 auto;padding:0 16px;display:flex;gap:20px;align-items:flex-start}
.content-area{flex:1;min-width:0}
.c-sidebar{width:300px;flex-shrink:0}

/* ==================== 软件列表项 ==================== */
.c-news{list-style:none}
.c-news>li{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;transition:box-shadow .2s,transform .2s;overflow:hidden}
.c-news>li:hover{box-shadow:var(--shadow-hover);transform:translateY(-1px)}
.c-item{display:flex;align-items:flex-start;padding:18px;gap:18px;position:relative}
.c-item .pic{flex-shrink:0;width:120px;height:120px;border-radius:8px;overflow:hidden;background:var(--primary-light);display:flex;align-items:center;justify-content:center}
.c-item .pic img{width:100%;height:100%;object-fit:cover}
.c-item .pic i{font-size:48px;color:var(--primary)}
.c-item .r{flex:1;min-width:0}
.c-item .r-top{margin-bottom:6px}
.c-item .name a{font-size:17px;font-weight:600;color:var(--text)}
.c-item .name a:hover{color:var(--primary)}
.c-item .name small{font-weight:400;color:var(--primary);margin-left:6px;font-size:13px}
.c-item .other{font-size:13px;color:var(--text-muted);margin-bottom:8px;display:flex;flex-wrap:wrap;gap:14px}
.c-item .other i{margin-right:3px}
.c-item .desc{font-size:14px;color:#4b5563;line-height:1.7;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.c-item .tagls{font-size:13px;color:var(--text-muted)}
.c-item .t-label{margin-right:4px}
.c-item .tag{display:inline-block;padding:2px 9px;margin-right:5px;background:var(--primary-light);color:var(--primary);border-radius:4px;font-size:12px}
.c-item .tag:hover{background:var(--primary);color:#fff}
.c-item .a-link{flex-shrink:0;align-self:center;padding:7px 16px;border:1px solid var(--primary);border-radius:6px;color:var(--primary);font-size:13px;font-weight:500;white-space:nowrap}
.c-item .a-link:hover{background:var(--primary);color:#fff}
.c-item .a-link span::before{content:"阅读全文"}

/* ==================== 侧栏 ==================== */
.side-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden}
.side-hd{padding:12px 16px;background:#f9fafb;border-bottom:1px solid var(--border);font-size:15px;font-weight:600;color:var(--text)}
.side-hd i{color:var(--primary);margin-right:5px}
.rank-list{list-style:none;padding:6px 0}
.rank-list li{display:flex;align-items:center;gap:10px;padding:7px 16px}
.rank-list li:hover{background:var(--primary-light)}
.rank-list em{width:22px;height:22px;border-radius:50%;background:#e5e7eb;color:var(--text-muted);font-size:12px;font-weight:700;text-align:center;line-height:22px;flex-shrink:0;font-style:normal}
.rank-list li.top em{background:var(--primary);color:#fff}
.rank-list a{color:var(--text);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-list a:hover{color:var(--primary)}
.rank-list .empty{color:var(--text-muted);font-size:13px;justify-content:center}
.tag-cloud{padding:14px 16px;display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud .tag{padding:4px 10px;background:#f3f4f6;color:var(--text);border-radius:14px;font-size:13px}
.tag-cloud .tag small{color:var(--text-muted);margin-left:3px}
.tag-cloud .tag:hover{background:var(--primary-light);color:var(--primary)}
.tag-cloud .tag.hot{background:var(--primary-light);color:var(--primary)}
.tag-cloud .empty{color:var(--text-muted);font-size:13px}

/* ==================== 分页 ==================== */
.pagination{display:flex;justify-content:center;align-items:center;gap:6px;padding:24px 0;flex-wrap:wrap}
.pagination .total{margin-right:12px;color:var(--text-muted);font-size:14px}
.pagination a,.pagination span{padding:7px 13px;border:1px solid var(--border);border-radius:6px;background:#fff;color:var(--text);font-size:14px}
.pagination a:hover{border-color:var(--primary);color:var(--primary)}
.pagination .current{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination .ellipsis{border:none;background:transparent}

/* ==================== 空状态 ==================== */
.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}
.empty-state i{font-size:48px;display:block;margin-bottom:12px;opacity:.4}

/* ==================== 表单/卡片 ==================== */
.form-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;max-width:460px;margin:40px auto}
.form-card h1{font-size:22px;text-align:center;margin-bottom:24px}
.form-card .form-group{margin-bottom:16px}
.form-card label{display:block;margin-bottom:6px;font-weight:500;font-size:14px}
.form-card .form-control{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-size:15px;outline:none;transition:border-color .15s}
.form-card .form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.form-card .btn-primary{width:100%;padding:11px;background:var(--primary);color:#fff;border:none;border-radius:6px;font-size:15px;font-weight:500;cursor:pointer}
.form-card .btn-primary:hover{background:var(--primary-dark)}
.form-card .form-text{font-size:13px;color:var(--text-muted);margin-top:6px}
.form-card .alert{padding:10px 14px;border-radius:6px;margin-bottom:16px;font-size:14px}
.form-card .alert-success{background:#dcfce7;color:#166534}
.form-card .alert-danger{background:#fee2e2;color:#991b1b}
.form-footer{text-align:center;margin-top:18px;font-size:14px;color:var(--text-muted)}

/* ==================== 软件详情页 ==================== */
.detail-wrap{max-width:var(--container);margin:0 auto;padding:24px 16px}
.detail-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:20px}
.detail-head{display:flex;gap:20px;margin-bottom:24px}
.detail-icon{width:96px;height:96px;border-radius:12px;overflow:hidden;background:var(--primary-light);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.detail-icon img{width:100%;height:100%;object-fit:cover}
.detail-icon i{font-size:44px;color:var(--primary)}
.detail-title{flex:1}
.detail-title h1{font-size:24px;margin-bottom:10px}
.detail-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--text-muted);font-size:13px}
.detail-meta .badge{background:var(--primary-light);color:var(--primary);padding:3px 10px;border-radius:4px;font-size:12px;margin-right:6px}
.detail-download{background:linear-gradient(135deg,#2563eb,#4f46e5);color:#fff;border-radius:var(--radius);padding:22px;margin-bottom:20px}
.detail-download h3{margin-bottom:14px;font-size:17px}
.detail-download .btn-dl{display:inline-block;background:#fff;color:var(--primary);padding:11px 26px;border-radius:6px;font-weight:600;margin-right:10px}
.detail-download .btn-dl:hover{background:#fef9c3}
.detail-info{background:rgba(255,255,255,.12);border-radius:8px;padding:14px;margin-top:14px}
.detail-info .info-row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px}
.detail-info .info-row .label{opacity:.85}
.detail-info .info-row .value{font-weight:600}
.author-box{display:flex;align-items:center;gap:10px;padding:14px;background:#f9fafb;border-radius:8px;margin:16px 0}
.author-box img{width:40px;height:40px;border-radius:50%}
.author-box i{font-size:28px;color:var(--primary)}
.author-box .author-name{font-weight:600}
.author-box .author-meta{font-size:12px;color:var(--text-muted)}
.section-h{border-left:3px solid var(--primary);padding-left:10px;margin:24px 0 12px;font-size:17px;font-weight:600}
.screenshots{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.screenshots img{border-radius:8px;border:1px solid var(--border);cursor:pointer;transition:transform .2s}
.screenshots img:hover{transform:scale(1.02);box-shadow:var(--shadow-hover)}

/* ==================== 评论 ==================== */
.comment-item{background:#fff;border:1px solid var(--border);border-radius:8px;padding:16px;margin-bottom:12px}
.comment-item .c-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.comment-item .c-avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center}
.comment-item .c-user{font-weight:600;font-size:14px}
.comment-item .c-time{font-size:12px;color:var(--text-muted)}
.comment-item .c-body{color:#374151;font-size:14px;line-height:1.7}

/* ==================== Footer ==================== */
.site-footer{background:#1f2937;color:#9ca3af;padding:28px 0;margin-top:40px}
.footer-inner{max-width:var(--container);margin:0 auto;padding:0 16px;text-align:center}
.footer-inner p{margin:4px 0;font-size:14px}
.footer-links a{color:#9ca3af;margin:0 4px}
.footer-links a:hover{color:#fff}

/* ==================== 状态标签 ==================== */
.status-tag{padding:2px 8px;border-radius:4px;font-size:12px;font-weight:500}
.status-pending{background:#fef3c7;color:#92400e}
.status-approved{background:#dcfce7;color:#166534}
.status-rejected{background:#fee2e2;color:#991b1b}

/* ==================== 后台适配 ==================== */
.admin-body{background:#f5f5f5}
.sidebar{min-height:calc(100vh - 56px);position:sticky;top:56px}
.stat-card{background:#fff;border-radius:12px;padding:18px;box-shadow:var(--shadow);display:flex;align-items:center;gap:16px}
.stat-icon{width:54px;height:54px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;flex-shrink:0}

/* ==================== 响应式 ==================== */
@media(max-width:992px){
  .c-sidebar{display:none}
  .main-inner{flex-direction:column}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap;height:auto;padding:10px 16px;gap:10px}
  .site-nav{order:3;width:100%;overflow-x:auto;padding-bottom:4px}
  .site-search{margin-left:0;flex:1}
  .site-search input{width:100%}
  .header-user{margin-left:0}
  .c-item{flex-direction:column;padding:14px;gap:12px}
  .c-item .pic{width:100%;height:160px}
  .c-item .a-link{align-self:flex-start}
  .detail-head{flex-direction:column}
  .container-fluid{padding:0 12px}
}