/* ===== 全局 ===== */
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#f5f6f8;color:#333;font-size:14px;line-height:1.5;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:750px;margin:0 auto;padding:0 12px;}

/* ===== 顶部导航 ===== */
.topbar{background:linear-gradient(135deg,#ff6a3d,#ff5722);color:#fff;padding:14px 0;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(255,87,34,.2);}
.topbar .wrap{display:flex;flex-direction:column;gap:12px;}
.topbar-row{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.topbar .logo{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;}
.topbar .logo-icon{font-size:20px;}
.topbar .top-weather{font-size:14px;font-weight:600;background:rgba(255,255,255,.2);padding:4px 10px;border-radius:14px;}
.topbar .topbar-right{display:flex;align-items:center;gap:8px;margin-left:auto;}
.topbar .region-picker{position:relative;}
.topbar .region-btn{background:rgba(255,255,255,.2);color:#fff;border:none;padding:6px 12px;border-radius:16px;font-size:13px;cursor:pointer;}
.topbar .region-menu{display:none;position:absolute;top:38px;right:0;background:#fff;color:#333;border-radius:10px;box-shadow:0 4px 20px rgba(0,0,0,.15);min-width:140px;z-index:200;}
.topbar .region-menu.show{display:block;}
.topbar .region-menu a{display:block;padding:10px 14px;font-size:13px;}
.topbar .region-menu a:hover{background:#f5f5f5;}
.topbar .lang-switch{background:rgba(255,255,255,.2);color:#fff;padding:6px 12px;border-radius:16px;font-size:13px;}
.topbar .admin-quick{background:#fff;color:#ff5722;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;}

/* 搜索 */
.search{display:flex;gap:8px;}
.search input{flex:1;padding:11px 16px;border:none;border-radius:24px;font-size:14px;outline:none;}
.search button{background:#fff;color:#ff5722;border:none;padding:0 20px;border-radius:24px;font-weight:600;cursor:pointer;font-size:15px;}

/* ===== 统计条 ===== */
.stat-bar{background:#fff;border-radius:10px;margin:10px 0;padding:12px;display:flex;justify-content:space-around;text-align:center;}
.stat-bar span{font-size:12px;color:#888;}
.stat-bar b{color:#ff5722;font-size:16px;margin-right:4px;}

/* ===== 公告 ===== */
.notice-bar{background:#fff8e1;border-radius:10px;margin:10px 0;padding:10px 12px;display:flex;align-items:center;gap:8px;font-size:12px;color:#e65100;overflow:hidden;}
.notice-scroll{flex:1;overflow:hidden;}
.notice-item{white-space:nowrap;animation:scroll 15s linear infinite;}

/* ===== 轮播 ===== */
.banner-slider{position:relative;margin:10px 0;border-radius:10px;overflow:hidden;background:#eee;}
.banner-slide{display:none;}
.banner-slide.active{display:block;animation:fade .4s;}
.banner-slide img{width:100%;height:180px;object-fit:cover;}
.banner-prev,.banner-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.3);color:#fff;border:none;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:18px;}
.banner-prev{left:8px;}.banner-next{right:8px;}
.banner-dots{position:absolute;bottom:8px;left:0;right:0;text-align:center;}
.banner-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.6);margin:0 3px;cursor:pointer;}
.banner-dot.active{background:#fff;width:16px;border-radius:3px;}
.banner-count{position:absolute;top:8px;right:8px;background:rgba(0,0,0,.5);color:#fff;font-size:11px;padding:2px 8px;border-radius:10px;}
.banner-placeholder{background:linear-gradient(135deg,#ff8a65,#ff5722);color:#fff;text-align:center;padding:40px;border-radius:10px;margin:10px 0;font-size:15px;}

/* ===== 圆形分类宫格（横向滑动） ===== */
.cat-round-grid{background:#fff;border-radius:10px;padding:12px 6px;display:flex;overflow-x:auto;gap:4px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;margin:10px 0;}
.cat-round-grid::-webkit-scrollbar{display:none;}
.cat-round-item{flex:0 0 auto;width:64px;text-align:center;font-size:11px;color:#333;display:flex;flex-direction:column;align-items:center;gap:4px;position:relative;cursor:pointer;scroll-snap-align:start;}
.cat-circle{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;box-shadow:0 2px 6px rgba(0,0,0,.1);}
.cat-round-item.active .cat-circle{box-shadow:0 0 0 2px #ff5722;}
.hot-badge{position:absolute;top:-4px;right:4px;background:#ff1744;color:#fff;font-size:9px;padding:1px 5px;border-radius:8px;}

/* ===== 信息列表（双列卡片） ===== */
.post-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.post-list{display:flex;flex-direction:column;gap:10px;}
.post-card{background:#fff;border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:8px;}
.post-card .thumb{width:100%;height:100px;border-radius:8px;background:#f5f5f5;overflow:hidden;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;}
.post-card .thumb-placeholder{width:100%;height:100px;border-radius:8px;background:linear-gradient(135deg,#ffccbc,#ff8a65);display:flex;align-items:center;justify-content:center;font-size:36px;color:#fff;}
.post-card .info{flex:1;min-width:0;}
.post-card .title{font-size:14px;font-weight:600;line-height:1.3;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.post-card .price{color:#ff5722;font-weight:700;font-size:14px;margin-top:4px;}
.post-card .sub{font-size:11px;color:#999;margin-top:6px;display:flex;gap:6px;flex-wrap:wrap;}
.post-card .tag{background:#fff3e0;color:#ff5722;padding:1px 6px;border-radius:4px;font-size:11px;}

/* ===== 底部 tabbar ===== */
.tabbar{display:flex;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid #eee;z-index:999;height:58px;align-items:center;justify-content:space-around;box-shadow:0 -2px 8px rgba(0,0,0,.05);padding-bottom:env(safe-area-inset-bottom);}
.tabbar .tab{flex:1;text-align:center;font-size:10px;color:#888;display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;}
.tabbar .tab-icon{font-size:20px;line-height:1;margin-bottom:2px;}
.tabbar .tab.active{color:#ff5722;}
.tabbar .tab-pub .tab-icon{background:#ff5722;color:#fff;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;margin-top:-20px;box-shadow:0 4px 12px rgba(255,87,34,.4);}
body{padding-bottom:70px;}
.foot{padding:20px 0 90px;text-align:center;font-size:12px;color:#999;}
@media(min-width:769px){.tabbar{display:none;}body{padding-bottom:0;}.foot{padding-bottom:30px;}}

/* ===== 表单 ===== */
.form{background:#fff;border-radius:10px;padding:16px;margin:10px 0;}
.form label{display:block;margin-bottom:12px;font-size:13px;color:#555;}
.form input,.form select,.form textarea{width:100%;padding:10px;border:1px solid #e0e0e0;border-radius:8px;font-size:14px;margin-top:4px;}
.submit{width:100%;padding:12px;background:#ff5722;color:#fff;border:none;border-radius:24px;font-size:15px;font-weight:600;cursor:pointer;}
.row{display:flex;gap:10px;}
.row label{flex:1;}

/* ===== 详情页 ===== */
.detail{background:#fff;border-radius:10px;padding:16px;margin:10px 0;}
.detail h1{font-size:18px;line-height:1.4;}
.detail .meta{display:flex;gap:8px;flex-wrap:wrap;font-size:12px;color:#999;margin:10px 0;}
.detail .tag{background:#fff3e0;color:#ff5722;padding:2px 8px;border-radius:4px;}
.detail .content{margin:14px 0;font-size:14px;line-height:1.7;}
.detail-img{width:100%;border-radius:8px;margin:10px 0;}
.contact{background:#f9f9f9;border-radius:8px;padding:12px;margin:12px 0;font-size:13px;}
.share-bar{display:flex;gap:8px;margin:12px 0;flex-wrap:wrap;}
.share-btn{padding:8px 16px;border:1px solid #ddd;border-radius:20px;background:#fff;cursor:pointer;font-size:13px;}
.act-btn{flex:1;text-align:center;padding:10px;background:#f5f5f5;border-radius:20px;font-size:13px;color:#333;text-decoration:none;border:none;cursor:pointer;}

/* ===== 我的页 ===== */
.profile-header{background:linear-gradient(135deg,#ff6a3d,#ff5722);color:#fff;border-radius:10px;padding:20px;margin:10px 0;display:flex;align-items:center;gap:14px;}
.avatar{width:60px;height:60px;border-radius:50%;background:#fff;color:#ff5722;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;}
.profile-menu{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;background:#fff;border-radius:10px;padding:16px;margin:10px 0;}
.profile-menu a{text-align:center;font-size:12px;color:#555;}
.profile-menu .icon{font-size:24px;margin-bottom:4px;}

/* ===== 消息页 ===== */
.chat-item{background:#fff;border-radius:10px;padding:12px;display:flex;gap:12px;align-items:center;margin-bottom:8px;}
.chat-avatar{width:46px;height:46px;border-radius:50%;background:#ff5722;color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;}
.chat-info{flex:1;min-width:0;}
.chat-name{font-size:14px;font-weight:600;}
.chat-last{font-size:12px;color:#999;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.chat-time{font-size:11px;color:#bbb;}
.unread{background:#ff1744;color:#fff;font-size:11px;padding:1px 7px;border-radius:10px;}

/* ===== 空状态 ===== */
.empty{text-align:center;color:#999;padding:40px 20px;font-size:13px;}

/* ===== 弹窗 ===== */
.poster-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:99999;align-items:center;justify-content:center;padding:20px;}
.poster-mask.show{display:flex;}
.poster-box{background:#fff;border-radius:12px;padding:16px;max-width:340px;width:100%;text-align:center;}
.poster-box canvas{width:100%;border-radius:8px;}
.poster-close{margin-top:10px;padding:8px 24px;background:#ff5722;color:#fff;border:none;border-radius:20px;cursor:pointer;}

/* ===== 动画 ===== */
@keyframes fade{from{opacity:0;}to{opacity:1;}}
@keyframes scroll{0%{transform:translateX(100%);}100%{transform:translateX(-100%);}}