/* ===== 非标自动化设备 信息发布平台 - 公共样式 ===== */
:root{
  --c-primary:#1466b8;       /* 工业蓝 */
  --c-primary-dark:#0d4d8c;
  --c-accent:#ff7a00;       /* 需求橙 */
  --c-accent2:#2fa56b;      /* 服务绿 */
  --c-bg:#f4f6f9;
  --c-border:#e2e6ec;
  --c-text:#2b3440;
  --c-text-soft:#6b7785;
  --radius:6px;
  --shadow:0 1px 3px rgba(20,40,80,.06),0 4px 12px rgba(20,40,80,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"Microsoft YaHei","PingFang SC",-apple-system,Segoe UI,Roboto,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:14px;line-height:1.6;
}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-dark);text-decoration:underline}
img{max-width:100%;display:block}
ul,ol{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 16px}

/* ===== 顶部导航 ===== */
.site-header{background:#fff;border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:50;box-shadow:var(--shadow)}
.header-inner{display:flex;align-items:center;height:64px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--c-primary)}
.logo .mark{width:34px;height:34px;border-radius:6px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.logo small{display:block;font-size:11px;color:var(--c-text-soft);font-weight:400;line-height:1.2;margin-top:2px}
.nav{display:flex;gap:4px;margin-left:8px}
.nav a{padding:8px 14px;border-radius:var(--radius);color:var(--c-text);font-size:15px;font-weight:500}
.nav a:hover{background:#eef3f9;text-decoration:none}
.nav a.active{background:var(--c-primary);color:#fff}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border-radius:var(--radius);border:1px solid var(--c-border);background:#fff;color:var(--c-text);cursor:pointer;font-size:14px;transition:.15s;line-height:1}
.btn:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-accent:hover{background:#e56f00;border-color:#e56f00;color:#fff}
.btn-green{background:var(--c-accent2);border-color:var(--c-accent2);color:#fff}
.btn-green:hover{background:#28905d;border-color:#28905d;color:#fff}
.btn-sm{padding:5px 10px;font-size:13px}

/* ===== 二级栏目标签条 ===== */
.subnav{background:#fff;border-bottom:1px solid var(--c-border)}
.subnav-inner{display:flex;align-items:center;gap:18px;height:48px;font-size:14px;color:var(--c-text-soft)}
.subnav a{color:var(--c-text-soft)}
.subnav a:hover{color:var(--c-primary)}
.subnav .crumb{color:var(--c-text);font-weight:500}

/* ===== 板块卡片(首页用) ===== */
.section{margin-top:28px}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.section-title{font-size:18px;font-weight:700;display:flex;align-items:center;gap:8px}
.section-title::before{content:"";width:4px;height:18px;background:var(--c-primary);border-radius:2px}
.section-title small{font-size:13px;color:var(--c-text-soft);font-weight:400}
.section-more{font-size:13px;color:var(--c-text-soft)}

/* 双列网格:需求 + 服务 */
.dual{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.panel{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--c-border)}
.panel-head h2{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px}
.panel-head .tag-pub{font-size:12px;color:var(--c-text-soft)}
.post-list li{display:flex;gap:10px;padding:11px 18px;border-bottom:1px dashed var(--c-border);align-items:flex-start}
.post-list li:last-child{border-bottom:none}
.post-list .pro{flex:1;min-width:0}
.post-list .pro a{color:var(--c-text);font-weight:500;font-size:15px}
.post-list .pro a:hover{color:var(--c-primary)}
.post-list .meta{font-size:12px;color:var(--c-text-soft);margin-top:4px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.post-list .meta .pill{background:#eef3f9;color:#3a4a5e;padding:2px 8px;border-radius:10px;font-size:11px}
.post-list .right{text-align:right;white-space:nowrap;flex-shrink:0;min-width:88px}
.post-list .price{color:#d23;font-weight:700;font-size:15px}
.post-list .replies{font-size:12px;color:var(--c-text-soft);margin-top:3px}

/* 标签颜色变化 */
.tag-need{color:#d23}
.tag-service{color:var(--c-accent2)}

/* ===== 论坛列表主体 ===== */
.forum-layout{display:grid;grid-template-columns:200px 1fr;gap:20px;margin-top:20px;align-items:start}
.sidebar{position:sticky;top:80px}
.side-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);padding:10px;margin-bottom:14px}
.side-card h3{font-size:14px;font-weight:700;margin-bottom:8px;padding:6px 8px;border-bottom:1px solid var(--c-border)}
.side-card a{display:block;padding:8px 10px;border-radius:4px;color:var(--c-text);font-size:14px}
.side-card a:hover{background:#eef3f9;text-decoration:none}
.side-card a.active{background:var(--c-primary);color:#fff}
.side-card a .cnt{float:right;font-size:12px;color:var(--c-text-soft)}
.side-card a.active .cnt{color:#cfe2f5}
.publish-call{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));color:#fff;border-radius:var(--radius);padding:18px;text-align:center}
.publish-call p{font-size:13px;opacity:.92;margin-bottom:12px}
.publish-call .btn{background:#fff;color:var(--c-primary);border:none;font-weight:600}
.publish-call .btn:hover{background:#eaf2fb}

/* 筛选条 */
.filter-bar{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);padding:6px 14px;margin-bottom:14px;display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;font-size:13px}
.filter-bar .label{color:var(--c-text-soft);margin-right:2px}
.filter-bar .opt{padding:4px 10px;border-radius:4px;cursor:pointer;color:var(--c-text)}
.filter-bar .opt:hover{background:#eef3f9}
.filter-bar .opt.active{background:var(--c-primary);color:#fff}
.filter-bar .group{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.filter-bar .divider{width:1px;height:18px;background:var(--c-border)}

/* 列表头 */
.list-head{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);padding:10px 16px;display:flex;align-items:center;gap:16px;color:var(--c-text-soft);font-size:13px;margin-bottom:6px}
.list-head .th-topic{flex:1}
.list-head .th-cat{width:120px}
.list-head .th-area{width:90px}
.list-head .th-author{width:120px}
.list-head .th-time{width:120px}
.list-head .th-replies{text-align:right;width:90px}

/* 列表行 */
.thread{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);margin-bottom:6px;display:flex;align-items:center;padding:12px 16px;gap:16px;transition:.12s}
.thread:hover{border-color:var(--c-primary);box-shadow:var(--shadow)}
.thread .topic{flex:1;min-width:0}
.thread .topic a{font-size:15px;color:var(--c-text);font-weight:500}
.thread .topic a:hover{color:var(--c-primary)}
.thread .topic .desc{font-size:12px;color:var(--c-text-soft);margin-top:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.thread .topic .badges{margin-top:5px;display:flex;gap:6px;flex-wrap:wrap}
.badge{font-size:11px;padding:1px 7px;border-radius:9px;line-height:16px;border:1px solid}
.badge.need{color:#c4130c;border-color:#f6c6c2;background:#fff5f4}
.badge.service{color:#1f7d4d;border-color:#bfe6cf;background:#eafaf0}
.badge.solved{color:#fff;background:#2fa56b;border-color:#2fa56b}
.badge.new{color:#fff;background:#ff7a00;border-color:#ff7a00}
.thread .col-cat{width:120px;font-size:13px;color:var(--c-text)}
.thread .col-area{width:90px;font-size:13px;color:var(--c-text-soft)}
.thread .col-author{width:120px;font-size:13px;color:var(--c-text)}
.thread .col-time{width:120px;font-size:12px;color:var(--c-text-soft)}
.thread .col-replies{text-align:right;width:90px}
.thread .col-replies .num{font-size:16px;font-weight:700;color:var(--c-primary)}
.thread .col-replies .lbl{font-size:11px;color:var(--c-text-soft)}
.thread.pin{background:#fffdf5;border-color:#f3dca0}
.thread.pin .pin-mark{color:#d4a200;margin-right:6px}

/* 空状态 */
.empty{padding:60px 20px;text-align:center;color:var(--c-text-soft);background:#fff;border:1px dashed var(--c-border);border-radius:var(--radius)}
.empty .big{font-size:42px;margin-bottom:8px;opacity:.45}

/* 分页 */
.pager{display:flex;gap:6px;justify-content:center;margin:20px 0}
.pager a,.pager span{padding:6px 12px;border:1px solid var(--c-border);border-radius:4px;background:#fff;color:var(--c-text);font-size:13px}
.pager a:hover{border-color:var(--c-primary);color:var(--c-primary);text-decoration:none}
.pager .current{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}

/* ===== 详情页 ===== */
.detail-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow)}
.breadcrumb{font-size:13px;color:var(--c-text-soft);margin-bottom:14px}
.breadcrumb a{color:var(--c-text-soft)}
.detail-title{font-size:22px;font-weight:700;margin-bottom:12px;line-height:1.4}
.detail-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--c-text-soft);font-size:13px;padding-bottom:14px;border-bottom:1px solid var(--c-border);margin-bottom:18px;align-items:center}
.detail-meta .who{color:var(--c-primary);font-weight:600}
.detail-content{font-size:15px;line-height:1.85;color:#36414f}
.detail-content p{margin-bottom:14px}
.detail-tags{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}
.price-line{background:#f7faff;border:1px solid #d7e3f5;border-radius:6px;padding:14px 18px;margin:18px 0;display:flex;flex-wrap:wrap;gap:18px;align-items:baseline}
.price-line .p{font-size:18px;color:#d23;font-weight:700}
.price-line .lab{color:var(--c-text-soft);font-size:13px}

/* 楼层评论 */
.reply-section{margin-top:24px}
.reply-section h3{font-size:16px;font-weight:700;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--c-primary)}
.floor{padding:14px 0;border-bottom:1px solid var(--c-border);display:flex;gap:12px}
.floor .avatar{width:42px;height:42px;border-radius:50%;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;flex-shrink:0}
.floor .body{flex:1;min-width:0}
.floor .head-line{font-size:13px;color:var(--c-text-soft);margin-bottom:4px}
.floor .head-line .name{color:var(--c-primary);font-weight:600}
.floor .lz{background:#1466b8;color:#fff;font-size:11px;padding:0 6px;border-radius:3px;margin-left:6px}
.floor .reply-content{font-size:14px;color:#36414f;line-height:1.7}
.reply-box{margin-top:16px;background:#fafbfc;border:1px solid var(--c-border);border-radius:6px;padding:12px}
.reply-box textarea{width:100%;min-height:90px;border:1px solid var(--c-border);border-radius:4px;padding:10px;font-family:inherit;font-size:14px;resize:vertical}
.reply-box .row{display:flex;justify-content:space-between;align-items:center;margin-top:10px}
.reply-box .hint{font-size:12px;color:var(--c-text-soft)}

/* ===== 表单(发布页) ===== */
.form-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);padding:24px 28px;box-shadow:var(--shadow);max-width:780px;margin:0 auto}
.form-card h1{font-size:20px;margin-bottom:6px}
.form-card .lead{font-size:13px;color:var(--c-text-soft);margin-bottom:22px}
.form-tabs{display:flex;border-bottom:1px solid var(--c-border);margin-bottom:22px}
.form-tabs button{padding:10px 22px;background:none;border:none;font-size:15px;color:var(--c-text-soft);cursor:pointer;border-bottom:3px solid transparent;font-weight:500}
.form-tabs button.on{color:var(--c-primary);border-bottom-color:var(--c-primary)}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:#36414f}
.form-row label .req{color:#d23}
.form-row input,.form-row select,.form-row textarea{width:100%;border:1px solid var(--c-border);border-radius:5px;padding:9px 12px;font-size:14px;font-family:inherit;background:#fff}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(20,102,184,.12)}
.form-row textarea{min-height:140px;resize:vertical;line-height:1.7}
.form-row .hint{font-size:12px;color:var(--c-text-soft);margin-top:5px}
.form-grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:10px}

.callout-success{background:#eafaf0;border:1px solid #bfe6cf;color:#1f7d4d;border-radius:6px;padding:14px 18px;margin-bottom:18px}

/* ===== 通用组件 ===== */
.card{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.card h3{font-size:16px;font-weight:700;margin-bottom:10px}
.kv{display:flex;gap:8px;font-size:13px;padding:7px 0;border-bottom:1px dashed var(--c-border)}
.kv:last-child{border-bottom:none}
.kv .k{color:var(--c-text-soft);width:84px;flex-shrink:0}
.kv .v{color:var(--c-text);flex:1}

/* ===== 页脚 ===== */
.site-footer{background:#1c2430;color:#aab4c2;margin-top:40px;padding:30px 0 20px;font-size:13px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.footer-grid h4{color:#fff;font-size:14px;margin-bottom:12px}
.footer-grid a{color:#aab4c2;display:block;padding:4px 0}
.footer-grid a:hover{color:#fff;text-decoration:none}
.footer-bottom{margin-top:24px;padding-top:18px;border-top:1px solid #2c3645;text-align:center;color:#7d8896}

/* ===== 图片上传 ===== */
.img-upload{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:8px}
.img-tile{position:relative;aspect-ratio:4/3;border:1px solid var(--c-border);border-radius:5px;overflow:hidden;background:#f4f6f9;display:flex;align-items:center;justify-content:center}
.img-tile img{width:100%;height:100%;object-fit:cover}
.img-tile .del{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;background:rgba(210,60,40,.9);color:#fff;border:none;cursor:pointer;font-size:13px;line-height:22px;text-align:center}
.img-tile.add{border:1px dashed #b6c3d4;cursor:pointer;color:var(--c-text-soft);flex-direction:column;gap:4px;font-size:12px}
.img-tile.add:hover{border-color:var(--c-primary);color:var(--c-primary)}
.img-tile.add input[type=file]{display:none}
.detail-imgs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.detail-imgs .img-tile{border:1px solid var(--c-border);margin-bottom:0}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:200;display:none;align-items:center;justify-content:center;cursor:zoom-out}
.lightbox.on{display:flex}
.lightbox img{max-width:92vw;max-height:92vh;border-radius:6px}
@media (max-width:600px){ .img-upload{grid-template-columns:repeat(3,1fr)} .detail-imgs{grid-template-columns:repeat(2,1fr)} }

/* 信息提示 */
.toast{position:fixed;right:24px;bottom:24px;background:#1f7d4d;color:#fff;padding:13px 20px;border-radius:6px;box-shadow:0 6px 20px rgba(0,0,0,.18);font-size:14px;z-index:9999;opacity:0;transform:translateY(10px);transition:.25s;pointer-events:none}
.toast.show{opacity:1;transform:translateY(0)}
.toast.err{background:#d23}

/* 响应式 */
@media (max-width:980px){
  .forum-layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .dual{grid-template-columns:1fr}
  .thread .col-cat,.thread .col-area,.thread .col-author,.thread .col-time,.list-head .th-cat,.list-head .th-area,.list-head .th-author,.list-head .th-time{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav{display:none}
}
@media (max-width:600px){
  .form-grid2{grid-template-columns:1fr}
  .form-card{padding:18px}
  .detail-title{font-size:19px}
}