/* ========== 全局重置 ========== */
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:#f0f2f5;
  color:#333;
  font-size:15px;
  line-height:1.6;
  -webkit-tap-highlight-color:transparent;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
input,textarea,select,button{font-family:inherit;font-size:inherit;border:none;outline:none}
button{cursor:pointer;background:none}

/* ========== 变量 ========== */
:root{
  --green:#4CAF50;
  --green-dark:#388E3C;
  --green-light:#E8F5E9;
  --orange:#FF9800;
  --orange-light:#FFF3E0;
  --red:#f44336;
  --blue:#2196F3;
  --gray:#999;
  --gray-light:#f5f5f5;
  --border:#e8e8e8;
  --radius:12px;
  --shadow:0 2px 8px rgba(0,0,0,.08);
}

/* ========== 顶部栏 ========== */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:linear-gradient(135deg,var(--green-dark),var(--green));
  color:#fff;height:52px;line-height:52px;
  box-shadow:0 2px 6px rgba(0,0,0,.15);
}
.topbar-inner{
  max-width:680px;margin:0 auto;padding:0 16px;
  display:flex;align-items:center;justify-content:space-between;
}
.logo{display:flex;align-items:center;gap:6px;cursor:pointer}
.logo-icon{width:26px;height:26px;border-radius:6px;display:block}
.logo-text{font-size:19px;font-weight:700;letter-spacing:1px}
.topbar-right{font-size:13px;display:flex;align-items:center;gap:8px}
.topbar-right .btn-link{color:#fff;opacity:.9;padding:4px 10px;border-radius:6px;background:rgba(255,255,255,.15)}
.topbar-right .btn-link:active{opacity:1}
.topbar-right .user-name{font-weight:600}

/* ========== 主内容 ========== */
.main-content{
  max-width:680px;margin:0 auto;
  padding:52px 0 60px;
  min-height:100vh;
}

/* ========== 底部导航 ========== */
.bottom-nav{
  position:fixed;bottom:0;left:0;right:0;z-index:100;
  background:#fff;border-top:1px solid var(--border);
  display:flex;max-width:680px;margin:0 auto;
  height:56px;
}
.nav-item{
  flex:1;display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  color:var(--gray);transition:color .2s;
}
.nav-item.active{color:var(--green)}
.nav-icon{font-size:22px;line-height:1}
.nav-label{font-size:11px;margin-top:2px}

/* ========== 通用组件 ========== */
.section{padding:12px 16px}
.card{
  background:#fff;border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;margin-bottom:12px;
}
.card-pad{padding:16px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 20px;border-radius:8px;font-size:15px;font-weight:600;
  transition:opacity .2s;
}
.btn:active{opacity:.8}
.btn-primary{background:var(--green);color:#fff}
.btn-orange{background:var(--orange);color:#fff}
.btn-outline{border:1.5px solid var(--green);color:var(--green);background:#fff}
.btn-block{display:flex;width:100%}
.btn-sm{padding:6px 14px;font-size:13px}

.tag{
  display:inline-block;padding:2px 10px;border-radius:20px;
  font-size:12px;font-weight:600;
}
.tag-supply{background:var(--green-light);color:var(--green-dark)}
.tag-buy{background:var(--orange-light);color:var(--orange)}
.tag-intro{background:#E3F2FD;color:var(--blue)}
.tag-urgent{background:#FFEBEE;color:var(--red)}

.empty-state{
  text-align:center;padding:48px 20px;color:var(--gray);
}
.empty-state .empty-icon{font-size:56px;margin-bottom:12px;opacity:.5}
.empty-state .empty-text{font-size:14px}

/* ========== 表单 ========== */
.form-group{margin-bottom:16px}
.form-label{
  display:block;font-size:14px;font-weight:600;
  margin-bottom:6px;color:#555;
}
.form-input,.form-textarea,.form-select{
  width:100%;padding:10px 12px;
  border:1.5px solid var(--border);border-radius:8px;
  font-size:15px;background:#fff;transition:border-color .2s;
}
.form-input:focus,.form-textarea:focus,.form-select:focus{
  border-color:var(--green);
}
.form-textarea{resize:vertical;min-height:80px}
.form-row{display:flex;gap:10px}
.form-row>*{flex:1}
.form-hint{font-size:12px;color:var(--gray);margin-top:4px}
.form-error{font-size:12px;color:var(--red);margin-top:4px}

/* 图片上传 */
.img-upload-area{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;
}
.img-preview{
  position:relative;width:80px;height:80px;
  border-radius:8px;overflow:hidden;
}
.img-preview img{width:100%;height:100%;object-fit:cover}
.img-preview .img-del{
  position:absolute;top:2px;right:2px;
  width:20px;height:20px;border-radius:50%;
  background:rgba(0,0,0,.5);color:#fff;
  font-size:12px;display:flex;align-items:center;justify-content:center;
}
.img-add{
  width:80px;height:80px;border:2px dashed var(--border);
  border-radius:8px;display:flex;align-items:center;justify-content:center;
  font-size:28px;color:var(--gray);cursor:pointer;
}

/* ========== 消息卡片 ========== */
.msg-card{padding:14px 16px}
.msg-card .msg-header{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:8px;
}
.msg-card .msg-user{
  display:flex;align-items:center;gap:8px;
}
.msg-card .msg-avatar{
  width:36px;height:36px;border-radius:50%;
  background:var(--green-light);display:flex;
  align-items:center;justify-content:center;font-size:18px;
}
.msg-card .msg-user-info .msg-name{font-size:14px;font-weight:600}
.msg-card .msg-user-info .msg-meta{font-size:12px;color:var(--gray)}
.msg-card .msg-title{
  font-size:16px;font-weight:600;margin-bottom:4px;
}
.msg-card .msg-content{
  font-size:14px;color:#555;margin-bottom:8px;
  white-space:pre-wrap;word-break:break-all;
}
.msg-card .msg-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.msg-card .msg-info{
  display:flex;flex-wrap:wrap;gap:12px;
  font-size:13px;color:#666;margin-bottom:8px;
}
.msg-card .msg-info span{display:flex;align-items:center;gap:3px}
.msg-card .msg-images{
  display:flex;gap:6px;overflow-x:auto;margin-bottom:8px;
  -webkit-overflow-scrolling:touch;
}
.msg-card .msg-images img{
  width:120px;height:90px;object-fit:cover;border-radius:6px;flex-shrink:0;
}
.msg-card .msg-video{
  position:relative;width:100%;height:200px;
  background:#000;border-radius:8px;overflow:hidden;margin-bottom:8px;
}
.msg-card .msg-video video{width:100%;height:100%;object-fit:contain}
.msg-card .msg-footer{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:8px;border-top:1px solid var(--gray-light);
}
.msg-card .msg-footer .msg-reply-btn{
  display:flex;align-items:center;gap:4px;
  font-size:13px;color:var(--gray);
}
.msg-card .msg-footer .msg-contact{
  font-size:13px;color:var(--green-dark);font-weight:600;
}
/* 电话脱敏直显：脱敏态可点击，展开后带下划线 */
.phone-mask{
  cursor:pointer;border-bottom:1px dashed #bbb;padding-bottom:1px;
  transition:color .15s;
}
.phone-mask:hover{color:#2f855a;border-bottom-color:#2f855a;}
.phone-mask.phone-shown{border-bottom:none;cursor:default;}
.phone-mask a{text-decoration:underline;}

/* ========== 回复 ========== */
.reply-item{
  padding:10px 0;border-bottom:1px solid var(--gray-light);
}
.reply-item:last-child{border-bottom:none}
.reply-item .reply-user{font-size:13px;font-weight:600;color:var(--green-dark)}
.reply-item .reply-text{font-size:14px;color:#555;margin:2px 0}
.reply-item .reply-time{font-size:12px;color:var(--gray)}

/* ========== 表格 ========== */
.table-toolbar{
  display:flex;gap:8px;align-items:center;
  margin-bottom:12px;flex-wrap:wrap;
}
.table-toolbar select,.table-toolbar input{
  padding:6px 10px;border:1.5px solid var(--border);
  border-radius:6px;font-size:13px;
}
.table-wrap{overflow-x:auto}
.data-table{
  width:100%;border-collapse:collapse;font-size:13px;
  min-width:500px;
}
.data-table th{
  background:var(--green);color:#fff;
  padding:10px 8px;text-align:left;font-weight:600;
  white-space:nowrap;position:sticky;top:0;
}
.data-table td{
  padding:10px 8px;border-bottom:1px solid var(--border);
  white-space:nowrap;
}
.data-table tr:nth-child(even){background:var(--gray-light)}
.data-table .type-supply{color:var(--green-dark);font-weight:600}
.data-table .type-buy{color:var(--orange);font-weight:600}
.table-summary{
  display:flex;gap:16px;margin-bottom:12px;
}
.table-summary .summary-item{
  flex:1;background:#fff;border-radius:8px;padding:12px;
  text-align:center;box-shadow:var(--shadow);
}
.table-summary .summary-num{font-size:22px;font-weight:700}
.table-summary .summary-label{font-size:12px;color:var(--gray)}
.table-summary .summary-item.supply .summary-num{color:var(--green)}
.table-summary .summary-item.buy .summary-num{color:var(--orange)}
.table-summary .summary-item.total .summary-num{color:#333}
.table-summary .summary-item.variety .summary-num{color:var(--blue)}

/* ========== 日期快捷标签 ========== */
.date-chips{
  display:flex;gap:8px;padding:0 0 12px;
  overflow-x:auto;-webkit-overflow-scrolling:touch;
}
.date-chips::-webkit-scrollbar{display:none}
.date-chip{
  flex-shrink:0;padding:6px 16px;border-radius:20px;
  font-size:13px;background:#fff;color:#666;
  box-shadow:var(--shadow);cursor:pointer;
  transition:all .2s;font-weight:600;
}
.date-chip.active{background:var(--green);color:#fff}

/* ========== 价格行情汇总 ========== */
.price-summary-title{
  font-size:15px;font-weight:700;color:#333;
  margin-bottom:10px;padding-left:2px;
}
.price-summary-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:10px;margin-bottom:16px;
}
.price-card{
  background:#fff;border-radius:10px;padding:12px;
  box-shadow:var(--shadow);border-left:3px solid var(--green);
}
.price-card .price-card-name{
  font-size:14px;font-weight:700;color:#333;margin-bottom:4px;
}
.price-card .price-card-range{
  font-size:16px;font-weight:700;color:var(--green-dark);
  margin-bottom:4px;
}
.price-card .price-card-info{
  font-size:11px;color:var(--gray);line-height:1.4;
}

/* ========== 挂牌行情表 ========== */
.listing-table th{
  background:var(--green-dark);
}
.listing-table .group-row td{
  background:var(--green-light);
  padding:8px 10px;
  border-bottom:1px solid var(--border);
}
.listing-table .group-row .group-icon{margin-right:4px}
.listing-table .group-row .group-name{
  font-size:15px;font-weight:700;color:var(--green-dark);
}
.listing-table .group-row .group-count{
  font-size:12px;color:var(--gray);margin-left:8px;
}
.listing-table .td-price{
  font-size:15px;font-weight:700;white-space:nowrap;
}
.listing-table .price-supply{color:var(--green-dark)}
.listing-table .price-buy{color:var(--orange)}
.listing-table .td-region{font-weight:600;color:#333}
.listing-table .td-user{font-size:12px;color:#555}
.listing-table .td-phone{font-size:12px;color:var(--blue)}
.listing-table .td-time{font-size:12px;color:var(--gray)}

/* ========== 个人中心 ========== */
.profile-header{
  background:linear-gradient(135deg,var(--green-dark),var(--green));
  color:#fff;padding:24px 16px;text-align:center;
}
.profile-avatar{
  width:64px;height:64px;border-radius:50%;
  background:rgba(255,255,255,.25);margin:0 auto 8px;
  display:flex;align-items:center;justify-content:center;
  font-size:32px;
}
.profile-name{font-size:18px;font-weight:700}
.profile-region{font-size:13px;opacity:.9;margin-top:2px}
.profile-menu{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);margin:12px 16px;
}
.profile-menu-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-bottom:1px solid var(--gray-light);
  cursor:pointer;
}
.profile-menu-item:last-child{border-bottom:none}
.profile-menu-item:active{background:var(--gray-light)}
.profile-menu-item .menu-left{display:flex;align-items:center;gap:10px}
.profile-menu-item .menu-icon{font-size:20px}
.profile-menu-item .menu-label{font-size:15px}
.profile-menu-item .menu-arrow{color:var(--gray)}

/* ========== 弹窗 ========== */
.modal{
  position:fixed;top:0;left:0;right:0;bottom:0;z-index:200;
  display:flex;align-items:flex-end;justify-content:center;
}
.modal-mask{
  position:absolute;top:0;left:0;right:0;bottom:0;
  background:rgba(0,0,0,.5);
}
.modal-body{
  position:relative;width:100%;max-width:680px;
  background:#fff;border-radius:16px 16px 0 0;
  max-height:85vh;display:flex;flex-direction:column;
  animation:slideUp .25s ease;
}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
.modal-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-bottom:1px solid var(--border);
}
.modal-header h3{font-size:17px;font-weight:700}
.modal-close{
  width:30px;height:30px;border-radius:50%;
  background:var(--gray-light);font-size:14px;
  display:flex;align-items:center;justify-content:center;
}
.modal-content{
  flex:1;overflow-y:auto;padding:16px;
  -webkit-overflow-scrolling:touch;
}

/* ========== Toast ========== */
.toast{
  position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);
  z-index:300;background:rgba(0,0,0,.8);color:#fff;
  padding:12px 24px;border-radius:8px;font-size:14px;
  max-width:80%;text-align:center;
}

/* ========== 发布浮动按钮 ========== */
.fab{
  position:fixed;bottom:72px;right:20px;z-index:90;
  width:52px;height:52px;border-radius:50%;
  background:var(--orange);color:#fff;font-size:28px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(255,152,0,.4);
  transition:transform .2s;
}
.fab:active{transform:scale(.9)}

/* ========== Tab切换条 ========== */
.tab-bar{
  display:flex;background:#fff;border-bottom:1px solid var(--border);
  position:sticky;top:52px;z-index:50;
}
.tab-bar-item{
  flex:1;text-align:center;padding:10px 0;
  font-size:14px;font-weight:600;color:var(--gray);
  border-bottom:2px solid transparent;transition:all .2s;
}
.tab-bar-item.active{color:var(--green);border-bottom-color:var(--green)}

/* ========== 消息筛选条 ========== */
.filter-bar{
  display:flex;gap:8px;padding:10px 16px;
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:#fff;border-bottom:1px solid var(--border);
}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{
  flex-shrink:0;padding:5px 14px;border-radius:20px;
  font-size:13px;background:var(--gray-light);color:#666;
  cursor:pointer;transition:all .2s;
}
.filter-chip.active{background:var(--green);color:#fff}

/* ========== 日期分隔 ========== */
.date-divider{
  text-align:center;padding:8px 0;
  font-size:12px;color:var(--gray);
}
.date-divider span{
  background:var(--gray-light);padding:2px 14px;border-radius:20px;
}

/* ========== 频道导航条 ========== */
.channel-bar{
  display:flex;background:#fff;
  border-bottom:1px solid var(--border);
  position:sticky;top:52px;z-index:50;
}
.channel-item{
  flex:1;text-align:center;padding:12px 4px;
  font-size:14px;font-weight:600;color:var(--gray);
  border-bottom:3px solid transparent;transition:all .2s;
  white-space:nowrap;
}
.channel-item.active{
  color:var(--green);border-bottom-color:var(--green);
}

/* ========== 分类卡片网格(地域/品种) ========== */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
}
.cat-card{
  background:#fff;border-radius:10px;
  padding:16px 8px;text-align:center;
  box-shadow:var(--shadow);cursor:pointer;
  transition:transform .15s;
}
.cat-card:active{transform:scale(.95)}
.cat-card .cat-icon{font-size:28px;margin-bottom:6px}
.cat-card .cat-name{font-size:14px;font-weight:600;color:#333;margin-bottom:2px}
.cat-card .cat-count{font-size:11px;color:var(--gray)}

/* ========== 子导航(选中地区/品种时) ========== */
.sub-nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 16px;background:var(--green-light);
  font-size:13px;font-weight:600;color:var(--green-dark);
  border-bottom:1px solid var(--border);
}
.sub-nav .sub-nav-clear{
  font-size:12px;font-weight:400;color:var(--gray);
  cursor:pointer;text-decoration:underline;
}

/* ========== 消息收藏按钮 ========== */
.msg-fav{
  font-size:18px;color:#ccc;cursor:pointer;
  padding:4px 8px;transition:color .2s;
}
.msg-fav.active{color:var(--orange)}

/* ========== 响应式 ========== */
@media(min-width:681px){
  .fab{right:calc(50% - 340px + 20px)}
}

/* ========== 备案信息 ========== */
.site-footer{max-width:680px;margin:0 auto;padding:16px 12px 72px;text-align:center;font-size:12px;color:var(--gray);}
.site-footer a{color:var(--gray);text-decoration:none;}
.site-footer a:hover{text-decoration:underline;}

/* ========== 顶部消息盒子 ========== */
.topbar-msg{
  position:relative;font-size:20px;cursor:pointer;
  width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:rgba(255,255,255,.15);line-height:1;
}
.topbar-msg:active{opacity:.8}
.msg-badge{
  position:absolute;top:-4px;right:-6px;min-width:18px;height:18px;
  padding:0 4px;border-radius:9px;background:var(--red);color:#fff;
  font-size:11px;font-style:normal;line-height:18px;text-align:center;
  box-shadow:0 1px 3px rgba(0,0,0,.3);
}

/* ========== 消息卡片私聊按钮 ========== */
.msg-card .msg-footer .msg-chat-btn{
  font-size:13px;color:#fff;background:var(--green);
  padding:3px 12px;border-radius:14px;font-weight:600;
  cursor:pointer;flex-shrink:0;
}
.msg-card .msg-footer .msg-chat-btn:active{background:var(--green-dark)}

/* ========== 会话列表 ========== */
.conv-item{
  display:flex;align-items:center;gap:12px;
  padding:14px 0;border-bottom:1px solid var(--gray-light);cursor:pointer;
}
.conv-item:last-child{border-bottom:none}
.conv-item:active{background:var(--gray-light)}
.conv-avatar{
  width:46px;height:46px;border-radius:50%;background:var(--green-light);
  display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0;
}
.conv-main{flex:1;min-width:0}
.conv-top{display:flex;align-items:center;justify-content:space-between}
.conv-name{font-size:15px;font-weight:600}
.conv-time{font-size:12px;color:var(--gray);flex-shrink:0;margin-left:8px}
.conv-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:2px}
.conv-preview{
  font-size:13px;color:var(--gray);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:70%;
}
.conv-unread{
  min-width:18px;height:18px;padding:0 5px;border-radius:9px;
  background:var(--red);color:#fff;font-size:11px;line-height:18px;text-align:center;flex-shrink:0;
}

/* ========== 聊天界面 ========== */
.chat-body{
  flex:1;overflow-y:auto;padding:12px;
  background:var(--gray-light);
  -webkit-overflow-scrolling:touch;max-height:55vh;
}
.chat-date{text-align:center;margin:8px 0;font-size:12px;color:var(--gray)}
.chat-date span{background:#fff;padding:2px 12px;border-radius:10px}
.chat-row{
  display:flex;align-items:flex-start;gap:8px;
  margin-bottom:12px;
}
.chat-row .chat-avatar{
  width:34px;height:34px;border-radius:50%;background:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.chat-row .chat-bubble{
  max-width:72%;padding:10px 12px;border-radius:12px;
  font-size:14px;line-height:1.5;word-break:break-word;
}
.chat-row.theirs .chat-bubble{
  background:#fff;border-top-left-radius:2px;
  box-shadow:0 1px 2px rgba(0,0,0,.06);
}
.chat-row.mine{flex-direction:row-reverse}
.chat-row.mine .chat-bubble{
  background:var(--green);color:#fff;border-top-right-radius:2px;
}
.chat-row .chat-time{
  align-self:flex-end;font-size:11px;color:var(--gray);
  padding-bottom:2px;flex-shrink:0;
}
.chat-input-bar{
  display:flex;gap:8px;align-items:center;
  padding:10px 12px;border-top:1px solid var(--border);background:#fff;
}
.chat-input{
  flex:1;padding:8px 12px;border:1.5px solid var(--border);
  border-radius:20px;font-size:14px;
}
.chat-input:focus{border-color:var(--green)}

/* ========== 个人中心菜单未读徽标 ========== */
.menu-unread{
  display:inline-block;min-width:18px;height:18px;padding:0 5px;
  border-radius:9px;background:var(--red);color:#fff;
  font-size:11px;line-height:18px;text-align:center;margin-right:4px;
}

/* ========== 举报入口 ========== */
.msg-card .msg-footer .msg-report-btn{
  font-size:15px;cursor:pointer;padding:2px 6px;border-radius:6px;
  opacity:.65;flex-shrink:0;
}
.msg-card .msg-footer .msg-report-btn:active{background:var(--gray-light);opacity:1}
.report-option{
  padding:12px;border-radius:8px;background:var(--gray-light);
  margin-bottom:8px;text-align:center;font-size:14px;cursor:pointer;
}
.report-option:active{background:var(--green-light);color:var(--green-dark)}

/* ========== 聊天消息举报 ========== */
.chat-row .chat-bubble-wrap{
  max-width:72%;display:flex;flex-direction:column;
}
.chat-row .chat-bubble-wrap .chat-bubble{max-width:100%}
.chat-row.mine .chat-bubble-wrap{align-items:flex-end}
.chat-row .chat-report{
  font-size:14px;cursor:pointer;opacity:.55;padding:2px 4px;
  flex-shrink:0;align-self:center;
}

/* ========== 管理后台 ========== */
.admin-tabs{
  display:flex;background:#fff;border-radius:10px;padding:4px;
  gap:4px;margin:12px 0;
}
.admin-tab{
  flex:1;text-align:center;padding:9px 0;border-radius:8px;
  font-size:14px;color:var(--gray);cursor:pointer;
}
.admin-tab.active{
  background:var(--green);color:#fff;font-weight:600;
}