:root{
  --primary:#ff552e;
  --primary-dark:#e8401a;
  --primary-light:#fff4f1;
  --text:#222;
  --text-2:#666;
  --text-3:#9a9a9a;
  --border:#ececec;
  --bg:#f5f6f7;
  --radius:8px;
  --container:1200px;
  --shadow:0 2px 8px rgba(0,0,0,.06);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:14px;color:var(--text);background:var(--bg);line-height:1.6;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit;font-size:inherit;outline:none;border:none;background:none}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 16px}

/* ===== 顶部 Header ===== */
.site-header{background:#fff;position:sticky;top:0;z-index:100;box-shadow:0 1px 0 var(--border)}
.header-inner{display:flex;align-items:center;gap:14px;padding:12px 0;flex-wrap:wrap}
.logo{font-size:22px;font-weight:800;color:var(--primary);flex-shrink:0;letter-spacing:-.5px}
.logo span{color:var(--text)}

/* 城市切换 */
.city-switch{position:relative;flex-shrink:0}
.city-btn{display:flex;align-items:center;gap:4px;padding:6px 10px;border-radius:6px;color:var(--text-2);cursor:pointer;transition:.2s;white-space:nowrap}
.city-btn:hover{background:var(--bg);color:var(--primary)}
.city-btn .arrow{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;transition:transform .2s}
.city-switch.open .city-btn .arrow{transform:rotate(180deg)}
.city-dropdown{position:absolute;top:calc(100% + 8px);left:0;background:#fff;border-radius:var(--radius);box-shadow:0 6px 24px rgba(0,0,0,.12);padding:12px;width:320px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.2s;z-index:110}
.city-switch.open .city-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.city-dropdown h4{font-size:12px;color:var(--text-3);font-weight:400;margin-bottom:8px}
.city-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:4px}
.city-grid a{padding:6px 4px;text-align:center;border-radius:6px;font-size:13px;color:var(--text-2);transition:.15s}
.city-grid a:hover{background:var(--primary-light);color:var(--primary)}
.city-grid a.active{background:var(--primary);color:#fff;font-weight:600}
/* 搜索 */
.search{flex:1;min-width:260px;display:flex;align-items:center;border:2px solid var(--primary);border-radius:var(--radius);overflow:hidden;background:#fff;height:42px}
.search-input{flex:1;padding:0 14px;height:100%;font-size:14px;color:var(--text);min-width:0}
.search-input::placeholder{color:#bbb}
.search-btn{height:100%;padding:0 24px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:.2s;flex-shrink:0}
.search-btn:hover{background:var(--primary-dark)}
.btn-post{flex-shrink:0;padding:0 20px;height:42px;line-height:42px;background:var(--primary);color:#fff;border-radius:var(--radius);font-weight:600;transition:.2s;white-space:nowrap}
.btn-post:hover{background:var(--primary-dark)}
/* 主导航：大分类 */
.main-nav{border-top:1px solid var(--border);background:#fff}
.main-nav ul{display:flex;gap:26px;overflow-x:auto;scrollbar-width:none}
.main-nav ul::-webkit-scrollbar{display:none}
.main-nav a{display:block;padding:11px 0;font-size:15px;color:var(--text-2);white-space:nowrap;border-bottom:2px solid transparent;transition:.2s}
.main-nav a:hover,.main-nav a.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}
/* 移动端广告位 */
.mobile-ad{display:none}
/* ===== 行业图标导航：仅生活服务细分 ===== */
.industry-nav{background:#fff;padding:16px 0;margin-bottom:16px;box-shadow:0 1px 0 var(--border);overflow:hidden}
.industry-list{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-bottom:0}
.industry-list::-webkit-scrollbar{display:none}
.industry-item{flex:0 0 auto;width:82px;text-align:center;padding:8px 4px;border-radius:var(--radius);transition:.2s}
.industry-item:hover{background:var(--primary-light)}
.industry-icon{width:46px;height:46px;margin:0 auto 6px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px}
.industry-item span{font-size:13px;color:var(--text-2)}
.industry-item:hover span{color:var(--primary)}
.ii-1{background:#e8f8ef;color:#12b76a}
.ii-2{background:#e6f0ff;color:#1677ff}
.ii-3{background:#fff2ec;color:#ff6b2c}
.ii-4{background:#f5ecff;color:#8b5cf6}
.ii-5{background:#fff7e0;color:#e8a000}
.ii-6{background:#e6f8fa;color:#0ea5b7}
.ii-7{background:#ffe9f0;color:#ec4899}
.ii-8{background:#eaf0ff;color:#4f6ef7}
.ii-9{background:#f0f5e8;color:#6a9a1f}
.ii-10{background:#fdecec;color:#e5484d}
.ii-11{background:#e9f3ff;color:#2b7fff}
.ii-12{background:#f3f0ff;color:#7c5cf0}
/* ===== 主体布局 ===== */
.layout{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start;padding:16px 0 40px}
.main-col{min-width:0}
.side-col{display:flex;flex-direction:column;gap:16px}
/* 筛选栏：只保留热门城市 */
.filter-bar{background:#fff;border-radius:var(--radius);padding:6px 16px 14px;margin-bottom:16px;box-shadow:var(--shadow)}
.filter-row{display:flex;gap:12px;padding:10px 0;font-size:13px}
.filter-label{flex:0 0 62px;color:var(--text-3);line-height:26px}
.filter-tags{flex:1;display:flex;flex-wrap:wrap;gap:6px}
.tag{padding:3px 12px;border-radius:14px;color:var(--text-2);cursor:pointer;transition:.15s;line-height:20px;white-space:nowrap}
.tag:hover{color:var(--primary)}
.tag.active{background:var(--primary);color:#fff;font-weight:600}
/* 列表头 */
.list-head{display:flex;justify-content:space-between;align-items:center;background:#fff;border-radius:var(--radius) var(--radius) 0 0;padding:12px 16px;border-bottom:1px solid var(--border);font-size:13px;color:var(--text-3)}
.list-head .sort{display:flex;gap:16px}
.list-head .sort a{color:var(--text-2)}
.list-head .sort a.active{color:var(--primary);font-weight:600}
/* 信息列表 */
.list{background:#fff;border-radius:0 0 var(--radius) var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.item{display:flex;gap:14px;padding:16px;border-bottom:1px solid var(--border);transition:background .15s}
.item:last-child{border-bottom:none}
.item:hover{background:#fafafa}
.item-thumb{flex:0 0 120px;height:90px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#fff;font-weight:600;letter-spacing:1px;background:linear-gradient(135deg,#ffb8a3,#ff7a55);overflow:hidden}
.item:nth-child(2n) .item-thumb{background:linear-gradient(135deg,#a3c9ff,#5f9dff)}
.item:nth-child(3n) .item-thumb{background:linear-gradient(135deg,#a8e6b8,#4fc76d)}
.item:nth-child(4n) .item-thumb{background:linear-gradient(135deg,#ffd9a3,#ffab33)}
.item:nth-child(5n) .item-thumb{background:linear-gradient(135deg,#d3b8ff,#9b6dff)}
.item-body{flex:1;min-width:0;min-height:90px;display:flex;flex-direction:column}
.item-title{font-size:16px;font-weight:600;color:var(--text);line-height:1.45;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.item:hover .item-title{color:var(--primary)}
.item-desc{font-size:13px;color:var(--text-3);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.item-meta{display:flex;align-items:center;gap:18px;margin-top:auto;padding-top:8px;font-size:12px;color:var(--text-3)}
.item-meta .top-badge{background:var(--primary);color:#fff;font-size:11px;padding:1px 6px;border-radius:3px;font-weight:600}
/* 首页列表底部：查看更多 */
.list-more{padding:18px 0 0;text-align:center}
.list-more a{
  display:inline-block;padding:10px 32px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);color:var(--text-2);font-size:14px;font-weight:600;
  box-shadow:var(--shadow);transition:.2s;
}
.list-more a:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light)}
/* 侧栏卡片 */
.side-card{background:#fff;border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:12px;padding-left:10px;position:relative}
.side-card h3::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:14px;background:var(--primary);border-radius:2px}
.side-post{background:linear-gradient(135deg,#ff7a55,#ff552e);color:#fff;text-align:center}
.side-post h3{color:#fff;padding-left:0;font-size:16px}
.side-post h3::before{display:none}
.side-post p{font-size:13px;opacity:.9;margin-bottom:14px}
.side-post .btn{display:block;background:#fff;color:var(--primary);padding:10px;border-radius:6px;font-weight:700;transition:.2s}
.side-post .btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,.15)}
.side-top-ad{background:#fff8e6;border:1px solid #ffe58f;text-align:center}
.side-top-ad h3{color:#d48806;padding-left:0}
.side-top-ad h3::before{display:none}
.side-top-ad p{font-size:12px;color:#ad6800;margin-bottom:12px}
.side-top-ad .btn{display:block;background:#faad14;color:#fff;padding:9px;border-radius:6px;font-weight:700;font-size:13px;transition:.2s}
.side-top-ad .btn:hover{background:#d48806}
/* 热门服务：完整标签云 */
.hot-cat{display:flex;flex-wrap:wrap;gap:8px}
.hot-cat a{padding:5px 12px;background:var(--bg);border-radius:14px;font-size:13px;color:var(--text-2);transition:.15s;white-space:nowrap}
.hot-cat a:hover{background:var(--primary-light);color:var(--primary)}
.rank li{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed var(--border);font-size:13px}
.rank li:last-child{border-bottom:none}
.rank .num{flex:0 0 18px;height:18px;line-height:18px;text-align:center;background:#e6e6e6;color:#fff;border-radius:4px;font-size:11px;font-weight:700}
.rank li:nth-child(1) .num{background:#ff4d4f}
.rank li:nth-child(2) .num{background:#ff8c33}
.rank li:nth-child(3) .num{background:#ffc53d}
.rank a{flex:1;color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:.15s}
.rank a:hover{color:var(--primary)}
/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--border);padding:28px 0 24px}
.friend-links{padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--border)}
.friend-links h4{font-size:14px;font-weight:700;margin-bottom:12px;padding-left:10px;position:relative}
.friend-links h4::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:14px;background:var(--primary);border-radius:2px}
.friend-links .links{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--text-3)}
.friend-links .links a{transition:.15s}
.friend-links .links a:hover{color:var(--primary)}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 20px;padding-bottom:18px;border-bottom:1px solid var(--border);font-size:13px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary)}
.footer-links .sep{color:#ddd}
.copyright{padding-top:18px;font-size:12px;color:var(--text-3);line-height:1.9;text-align:center}
.to-top{position:fixed;right:20px;bottom:40px;width:44px;height:44px;background:#fff;border-radius:50%;box-shadow:0 4px 16px rgba(0,0,0,.15);display:flex;align-items:center;justify-content:center;color:var(--text-2);cursor:pointer;font-size:18px;opacity:0;visibility:hidden;transition:.3s;z-index:90}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{color:var(--primary)}
/* 响应式 */
@media (max-width:991px){
  .layout{grid-template-columns:1fr}
  .side-col{order:2;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
  .side-post{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 12px}
  .header-inner{gap:10px;padding:10px 0}
  .logo{font-size:19px}
  .search{order:3;width:100%;min-width:0;height:40px}
  .search-btn{padding:0 18px;font-size:14px}
  .btn-post{display:none}
  .city-dropdown{width:calc(100vw - 48px);max-width:320px}
  .city-grid{grid-template-columns:repeat(4,1fr)}
  .main-nav ul{gap:18px}
  .main-nav a{font-size:14px;padding:9px 0}

  .mobile-ad{display:flex;align-items:center;justify-content:center;height:80px;margin-top:12px;background:linear-gradient(135deg,#eef3fa,#dbe5f2);border:1px dashed #c3cfdf;border-radius:var(--radius);color:#8a9bb5;font-size:13px;letter-spacing:.5px;overflow:hidden}
  .mobile-ad img{width:100%;height:100%;object-fit:cover}
  .industry-nav{padding:12px 0}
  .industry-list{-webkit-overflow-scrolling:touch}
  .industry-item{width:72px}
  .industry-icon{width:42px;height:42px;font-size:19px;border-radius:10px}
  .industry-item span{font-size:12px}
  .filter-bar{padding:4px 12px 10px}
  .filter-row{gap:8px;padding:8px 0}
  .filter-label{flex:0 0 62px;font-size:12px}
  .item{padding:14px 12px;gap:12px}
  .item-thumb{flex:0 0 96px;height:72px;font-size:11px}
  .item-body{min-height:72px}
  .item-title{font-size:15px;-webkit-line-clamp:2}
  .item-desc{font-size:12px;-webkit-line-clamp:2}
  .item-meta{gap:14px}
  .list-more a{padding:9px 24px;font-size:13px}
  .hot-cat a{font-size:12px;padding:4px 10px}
  .side-col{grid-template-columns:1fr}
  .to-top{right:14px;bottom:24px;width:40px;height:40px}
}
@media (max-width:400px){
  .item-thumb{flex:0 0 84px;height:64px}
  .item-body{min-height:64px}
}