/* ===== 全局样式 ===== */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;background:#f5f6fa;color:#333;font-size:14px;line-height:1.6}
a{color:#667eea;text-decoration:none}
a:hover{color:#764ba2}
img{max-width:100%}
ul,ol{list-style:none}

/* ===== 顶部导航 ===== */
.topbar{background:linear-gradient(90deg,#667eea,#764ba2);color:#fff;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.topbar .inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;height:56px;padding:0 20px}
.topbar .logo{font-size:20px;font-weight:bold;margin-right:30px;white-space:nowrap}
.topbar .logo a{color:#fff}
.topbar .nav{display:flex;gap:6px;flex:1}
.topbar .nav a{color:rgba(255,255,255,.9);padding:8px 14px;border-radius:6px;font-size:14px;transition:.2s}
.topbar .nav a:hover,.topbar .nav a.active{background:rgba(255,255,255,.2);color:#fff}
.topbar .search{display:flex;margin:0 16px}
.topbar .search input{padding:6px 12px;border:none;border-radius:20px 0 0 20px;width:200px;outline:none}
.topbar .search button{background:#fff;color:#667eea;border:none;padding:6px 14px;border-radius:0 20px 20px 0;cursor:pointer;font-size:13px}
.topbar .user-area{display:flex;align-items:center;gap:12px}
.topbar .user-area > a{position:relative;display:inline-block;line-height:1}
.topbar .avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;border:2px solid #fff}
.topbar .dropdown{position:relative}
.topbar .dropdown-menu{display:none;position:absolute;right:0;top:40px;background:#fff;color:#333;min-width:160px;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.15);overflow:hidden}
.topbar .dropdown:hover .dropdown-menu{display:block}
.topbar .dropdown.open .dropdown-menu{display:block}
.topbar .dropdown-menu a{display:block;padding:10px 16px;color:#333;border-bottom:1px solid #f0f0f0}
.topbar .dropdown-menu a:hover{background:#f5f6fa}
.topbar .notify-badge{position:absolute;top:-6px;right:-8px;background:#ef4444;color:#fff;font-size:10px;border-radius:8px;padding:1px 5px;line-height:1.2;min-width:16px;text-align:center}

/* ===== 手机底部导航栏 ===== */
.mobile-tabbar{display:none;position:fixed;bottom:0;left:0;right:0;height:56px;background:#fff;border-top:1px solid #e5e7eb;z-index:99;box-shadow:0 -2px 10px rgba(0,0,0,.06);justify-content:space-around;align-items:center}
.mobile-tabbar a{display:flex;flex-direction:column;align-items:center;gap:2px;color:#999;font-size:10px;padding:6px 8px;flex:1;text-align:center}
.mobile-tabbar a.active{color:#667eea}
.mobile-tabbar a .tab-icon{font-size:20px;line-height:1}
.mobile-tabbar .tab-fab{flex:0 0 auto!important;width:44px!important;height:44px!important;border-radius:50%!important;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff!important;display:flex!important;flex-direction:row!important;align-items:center!important;justify-content:center!important;margin:0 auto;margin-top:-20px;box-shadow:0 4px 12px rgba(102,126,234,.4);padding:0!important}
.mobile-tabbar .tab-fab .tab-icon{font-size:24px}

/* ===== 布局 ===== */
.container{max-width:1200px;margin:20px auto;padding:0 20px;display:grid;grid-template-columns:220px 1fr 260px;gap:20px}
.container.nosidebar{grid-template-columns:1fr;max-width:900px}
.container.leftmain{grid-template-columns:1fr 260px;max-width:1100px}
.main{min-width:0}
.sidebar-left,.sidebar-right{position:sticky;top:76px;align-self:start;max-height:calc(100vh - 90px);overflow-y:auto}

/* ===== 卡片 ===== */
.card{background:#fff;border-radius:10px;padding:16px;margin-bottom:16px;box-shadow:0 1px 4px rgba(0,0,0,.05)}
.card h3{font-size:15px;margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid #667eea;display:inline-block}

/* ===== 按钮 ===== */
.btn{display:inline-block;padding:7px 16px;border:none;border-radius:6px;cursor:pointer;font-size:13px;transition:.2s}
.btn-primary{background:#667eea;color:#fff}
.btn-primary:hover{background:#5568d3;color:#fff}
.btn-danger{background:#ef4444;color:#fff}
.btn-danger:hover{background:#dc2626;color:#fff}
.btn-success{background:#22c55e;color:#fff}
.btn-warning{background:#f59e0b;color:#fff}
.btn-default{background:#f0f0f0;color:#333}
.btn-default:hover{background:#e0e0e0}
.btn-sm{padding:4px 10px;font-size:12px}
.btn-lg{padding:10px 24px;font-size:15px}

/* ===== 帖子列表 ===== */
.post-list .post-item{padding:14px 0;border-bottom:1px solid #f0f0f0}
.post-list .post-item:last-child{border-bottom:none}
.post-item .post-title{font-size:16px;font-weight:500;margin-bottom:6px}
.post-item .post-title a{color:#333}
.post-item .post-title a:hover{color:#667eea}
.post-item .meta{font-size:12px;color:#999;display:flex;gap:14px;flex-wrap:wrap}
.post-item .meta span{display:flex;align-items:center;gap:3px}
.tag-redpacket{background:linear-gradient(90deg,#f59e0b,#ef4444);color:#fff;font-size:11px;padding:1px 6px;border-radius:3px;margin-left:6px}
.tag-essence{background:#ef4444;color:#fff;font-size:11px;padding:1px 6px;border-radius:3px;margin-left:6px}
.tag-top{background:#667eea;color:#fff;font-size:11px;padding:1px 6px;border-radius:3px;margin-left:6px}
.tag-type{background:#e0e7ff;color:#667eea;font-size:11px;padding:1px 6px;border-radius:3px;margin-left:6px}

/* ===== 帖子详情 ===== */
.post-detail .title{font-size:22px;font-weight:bold;margin-bottom:12px}
.post-detail .info{color:#888;font-size:13px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #f0f0f0}
.post-detail .content{font-size:15px;line-height:1.8;word-break:break-word}
.post-detail .content img{max-width:100%;border-radius:6px;margin:8px 0}
.post-detail .actions{margin-top:16px;padding-top:12px;border-top:1px solid #f0f0f0;display:flex;gap:10px;flex-wrap:wrap}
.action-btn{padding:6px 14px;border:1px solid #ddd;border-radius:20px;cursor:pointer;font-size:13px;background:#fff;transition:.2s}
.action-btn:hover{border-color:#667eea;color:#667eea}
.action-btn.active{background:#667eea;color:#fff;border-color:#667eea}

/* ===== 评论 ===== */
.comments .comment{padding:12px 0;border-bottom:1px solid #f5f5f5}
.comment .c-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.comment .c-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover}
.comment .c-name{font-weight:500;color:#667eea}
.comment .c-time{color:#aaa;font-size:12px}
.comment .c-content{padding-left:46px;font-size:14px}
.comment .c-actions{padding-left:46px;margin-top:6px;font-size:12px;color:#999}
.comment .c-actions a{margin-right:12px}
.comment .reply-form{margin-left:46px;margin-top:8px;display:none}
.comment .reply-form.show{display:block}
.comment .sub-comments{margin-left:46px;margin-top:8px;padding-left:12px;border-left:2px solid #f0f0f0}
.comment .sub-comments .comment{padding:8px 0;border-bottom:1px dashed #f5f5f5}
.comment .sub-comments .comment:last-child{border-bottom:none}

/* ===== 表单 ===== */
.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-weight:500;color:#444}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:9px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;outline:none;transition:.2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:#667eea;box-shadow:0 0 0 3px rgba(102,126,234,.1)}
.form-group textarea{resize:vertical;min-height:120px;font-family:inherit}

/* ===== 编辑器工具栏 ===== */
.editor-toolbar{display:flex;gap:4px;margin-bottom:8px;flex-wrap:wrap}
.editor-toolbar button{padding:5px 10px;border:1px solid #ddd;background:#fff;border-radius:4px;cursor:pointer;font-size:13px}
.editor-toolbar button:hover{background:#f0f0f0}

/* ===== 等级徽章 ===== */
.level-badge{display:inline-block;padding:1px 8px;border-radius:10px;font-size:11px;color:#fff;font-weight:bold}
.user-badge{display:inline-block;padding:1px 6px;border-radius:8px;font-size:11px;color:#fff;font-weight:bold;line-height:1.4;vertical-align:middle;margin-left:2px}
.avatar-frame{border-radius:50%;padding:2px}
.frame_purple{border:3px solid #a855f7}
.frame_gold{border:3px solid #f59e0b}
.frame_red{border:3px solid #ef4444}
.frame_pink{border:3px solid #ec4899}
.frame_legend{border:3px solid #eab308;box-shadow:0 0 10px rgba(234,179,8,.5)}

/* ===== 排行榜 ===== */
.rank-list .rank-item{display:flex;align-items:center;padding:8px 0;border-bottom:1px solid #f5f5f5}
.rank-list .rank-num{width:24px;height:24px;border-radius:50%;background:#eee;display:flex;align-items:center;justify-content:center;margin-right:10px;font-size:12px;font-weight:bold}
.rank-list .rank-item:nth-child(1) .rank-num{background:#f59e0b;color:#fff}
.rank-list .rank-item:nth-child(2) .rank-num{background:#9ca3af;color:#fff}
.rank-list .rank-item:nth-child(3) .rank-num{background:#cd7f32;color:#fff}
.rank-list .rank-name{flex:1;font-size:13px}
.rank-list .rank-val{font-weight:bold;color:#667eea}

/* ===== 分页 ===== */
.pagination{display:flex;gap:6px;justify-content:center;margin:20px 0;flex-wrap:wrap}
.pagination a,.pagination span{padding:6px 12px;border:1px solid #ddd;border-radius:4px;background:#fff;color:#333;font-size:13px}
.pagination a:hover{border-color:#667eea;color:#667eea}
.pagination a.active{background:#667eea;color:#fff;border-color:#667eea}

/* ===== 公告 ===== */
.announcement-bar{background:linear-gradient(90deg,#fef3c7,#fde68a);color:#92400e;padding:10px 20px;text-align:center;font-size:14px}
.announcement-bar a{color:#92400e;font-weight:bold}

/* ===== 轮盘 ===== */
.wheel-container{display:flex;flex-direction:column;align-items:center;padding:20px}
.wheel{width:300px;height:300px;border-radius:50%;border:8px solid #667eea;position:relative;overflow:hidden;transition:transform 4s cubic-bezier(.17,.67,.12,.99)}
.wheel-pointer{position:absolute;top:-10px;left:50%;transform:translateX(-50%);width:0;height:0;border-left:15px solid transparent;border-right:15px solid transparent;border-top:30px solid #ef4444;z-index:2}

/* ===== 红包 ===== */
.redpacket-box{background:linear-gradient(135deg,#f59e0b,#ef4444);color:#fff;border-radius:12px;padding:20px;text-align:center;max-width:360px;margin:16px auto}
.redpacket-box .amount{font-size:32px;font-weight:bold;margin:8px 0}

/* ===== 消息 ===== */
.msg-tabs{display:flex;border-bottom:2px solid #f0f0f0;margin-bottom:16px}
.msg-tabs .tab{padding:10px 20px;cursor:pointer;color:#666}
.msg-tabs .tab.active{color:#667eea;border-bottom:2px solid #667eea;margin-bottom:-2px}
.msg-item{padding:12px;border-bottom:1px solid #f5f5f5;cursor:pointer}
.msg-item:hover{background:#f9f9fb}
.msg-item.unread{background:#fff7ed}
.msg-item .m-title{font-weight:500;margin-bottom:4px}
.msg-item .m-time{color:#999;font-size:12px}

/* ===== 搜索结果 ===== */
.search-highlight{background:#fef08a;padding:0 2px}

/* ===== 后台 ===== */
.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{width:200px;background:#1f2937;color:#cbd5e1;padding:20px 0;position:fixed;height:100vh;overflow-y:auto}
.admin-sidebar h2{color:#fff;padding:0 20px 16px;font-size:16px;border-bottom:1px solid #374151}
.admin-sidebar a{display:block;padding:10px 20px;color:#cbd5e1;font-size:13px}
.admin-sidebar a:hover,.admin-sidebar a.active{background:#374151;color:#fff}
.admin-main{margin-left:200px;padding:20px;flex:1}
.admin-main h1{font-size:20px;margin-bottom:20px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:20px;border-radius:10px}
.stat-card .num{font-size:28px;font-weight:bold}
.stat-card .label{font-size:13px;opacity:.9;margin-top:4px}
.admin-table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;overflow:hidden}
.admin-table th{background:#f3f4f6;padding:10px;text-align:left;font-size:13px}
.admin-table td{padding:10px;border-top:1px solid #eee;font-size:13px}
.admin-table tr:hover{background:#f9fafb}

/* ===== 响应式：平板 ===== */
@media (max-width:900px){
  .container{grid-template-columns:1fr;padding:0 12px}
  .container.leftmain{grid-template-columns:1fr}
  .sidebar-left,.sidebar-right{position:static;max-height:none}
  .topbar .search input{width:120px}
  .topbar .nav{display:none}
}

/* ===== 响应式：手机端 ===== */
@media (max-width:768px){
  /* 全局 */
  body{font-size:13px;-webkit-text-size-adjust:100%}
  img{max-width:100%}

  /* 顶部导航 */
  .topbar .inner{height:50px;padding:0 12px;flex-wrap:wrap}
  .topbar .logo{font-size:16px;margin-right:10px;flex-shrink:0}
  .topbar .logo a img{height:28px!important;max-width:120px!important}
  .topbar .nav{display:none}
  .topbar .search{margin:0 8px;flex:1;min-width:0}
  .topbar .search input{width:100%;max-width:160px;padding:6px 10px;font-size:13px}
  .topbar .search button{padding:6px 10px;font-size:12px}
  .topbar .user-area{gap:8px}
  .topbar .user-area > a{font-size:18px}
  .topbar .avatar{width:30px;height:30px}
  .topbar .dropdown-menu{min-width:140px;right:-10px;top:38px}
  .topbar .dropdown-menu a{padding:10px 14px;font-size:13px}
  .notify-badge{font-size:9px;padding:0 4px;min-width:14px;top:-4px;right:-6px}

  /* 布局 */
  .container{grid-template-columns:1fr;padding:0 10px;margin:10px auto;gap:12px}
  .container.nosidebar{max-width:100%;padding:0 10px}
  .container.leftmain{grid-template-columns:1fr;max-width:100%}
  .sidebar-left{position:static;max-height:none;order:-1;width:100%}
  .sidebar-left > .card{margin-bottom:8px}
  .sidebar-left > .card > div[style*="flex-direction:column"]{flex-direction:row!important;overflow-x:auto;gap:6px!important;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .sidebar-left > .card > div[style*="flex-direction:column"] a{white-space:nowrap;flex-shrink:0}
  .sidebar-left > .card.text-center{display:none}
  .sidebar-right{position:static;max-height:none;order:2}
  .main{min-width:0}

  /* 卡片 */
  .card{padding:12px;border-radius:8px;margin-bottom:12px}
  .card h3{font-size:14px;margin-bottom:10px}

  /* 按钮 - 增大触控区域 */
  .btn{padding:8px 14px;font-size:13px;min-height:36px}
  .btn-sm{padding:6px 10px;font-size:12px;min-height:30px}

  /* 帖子列表 */
  .post-list .post-item{padding:12px 0}
  .post-item .post-title{font-size:15px;line-height:1.4}
  .post-item .meta{font-size:11px;gap:10px}

  /* 帖子详情 */
  .post-detail .title{font-size:18px;line-height:1.4}
  .post-detail .content{font-size:14px;line-height:1.7}
  .post-detail .actions{gap:8px}
  .action-btn{padding:6px 10px;font-size:12px;min-height:34px}

  /* 评论 */
  .comment .c-avatar{width:32px;height:32px}
  .comment .c-content{padding-left:42px;font-size:13px}
  .comment .c-actions{padding-left:42px;font-size:11px}
  .comment .reply-form{margin-left:42px}
  .comment .sub-comments{margin-left:42px}

  /* 表单 */
  .form-group input,.form-group select,.form-group textarea{padding:10px;font-size:14px}
  .form-group label{font-size:13px}

  /* 编辑器 */
  .editor-toolbar button{padding:6px 8px;font-size:12px}

  /* 排行榜 */
  .rank-list .rank-item{padding:8px 0}
  .rank-list .rank-name{font-size:12px}

  /* 分页 */
  .pagination a,.pagination span{padding:6px 10px;font-size:12px}

  /* 公告条 */
  .announcement-bar{padding:8px 12px;font-size:13px}

  /* 轮盘 */
  .wheel{width:240px;height:240px;border-width:6px}
  .wheel-pointer{border-left-width:12px;border-right-width:12px;border-top-width:24px}

  /* 红包 */
  .redpacket-box{padding:16px;margin:12px auto}
  .redpacket-box .amount{font-size:26px}

  /* 消息 */
  .msg-item{padding:10px}
  .msg-tabs .tab{padding:10px 14px;font-size:13px}

  /* 表格（横向滚动） */
  .admin-table-wrapper,.table-wrapper{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .card:has(.admin-table){overflow-x:auto;-webkit-overflow-scrolling:touch}
  .admin-table{display:table;width:100%;font-size:12px;border-collapse:collapse}
  .admin-table th,.admin-table td{padding:8px}

  /* 后台 */
  .admin-layout{flex-direction:column}
  .admin-sidebar{width:100%;height:auto;position:static;display:flex;overflow-x:auto;padding:10px 0;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}
  .admin-sidebar h2{display:none}
  .admin-sidebar a{padding:8px 14px;font-size:12px;white-space:nowrap;flex-shrink:0}
  .admin-main{margin-left:0;padding:12px}
  .admin-main h1{font-size:18px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat-card{padding:14px}
  .stat-card .num{font-size:22px}

  /* 手机底部导航栏 */
  .mobile-tabbar{display:flex!important}
  body.has-tabbar{padding-bottom:60px}

  /* 公告弹窗移动端 */
  .announcement-modal{left:5%;right:5%;width:auto;max-width:none}

  /* 私信页面移动端 */
  .pm-layout{height:calc(100vh - 160px)!important}
  .pm-conv-list{width:100px!important;flex-shrink:0}
  .pm-chat{min-width:0}

  /* 转盘移动端 */
  .wheel-container > div{width:260px!important;height:280px!important}
  #wheel{width:260px!important;height:260px!important}

  /* 个人资料页头像移动端 */
  .profile-avatar-wrap img{width:72px!important;height:72px!important;top:-36px!important;left:12px!important}
  .profile-avatar-wrap > div{margin-left:88px!important}

  /* 成就网格移动端 */
  .achievement-grid{display:flex;flex-wrap:wrap;justify-content:center}
}

/* ===== 其它 ===== */
.alert{padding:10px 14px;border-radius:6px;margin-bottom:12px}
.alert-success{background:#d1fae5;color:#065f46}
.alert-error{background:#fee2e2;color:#991b1b}
.alert-info{background:#dbeafe;color:#1e40af}
.muted{color:#999}
.text-center{text-align:center}
.mt10{margin-top:10px}.mt20{margin-top:20px}
.flex{display:flex}.gap10{gap:10px}.items-center{align-items:center}
.flex-1{flex:1}