/* ============================================================
   LAOS856 · 分类信息门户（参考 58 同城模板风格）
   统一公共端 / 后台 / 移动端样式
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root{
  --bg:#f5f6f7;
  --surface:#ffffff;
  --surface-2:#fff3ec;
  --ink:#222222;
  --ink-2:#333333;
  --muted:#999999;
  --line:#eeeeee;
  --line-2:#f0f0f0;
  --primary:#ff6a00;
  --primary-2:#f05a00;
  --primary-3:#e05000;
  --accent:#ff9e40;
  --navy:#ff6a00;
  --navy-2:#f05a00;
  --green:#0aa06a;
  --gold:#ffb020;
  --danger:#e23b4b;
  --shadow-sm:0 1px 4px rgba(0,0,0,.05);
  --shadow-md:0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:0 8px 28px rgba(0,0,0,.12);
  --radius:12px;
  --radius-sm:8px;
  --grad-hero:linear-gradient(135deg,#ff8a2e 0%,#ff6a00 48%,#ff9e40 100%);
  --grad-btn:linear-gradient(135deg,#ff7a1e,#ff6a00);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans Lao",sans-serif;
}

/* ---------- 后台深蓝主题（仅 admin 页面） ---------- */
.admin-theme{
  --bg:#eef1f6;
  --surface:#ffffff;
  --surface-2:#e8edf5;
  --ink:#1a2233;
  --ink-2:#2a3446;
  --muted:#6b7686;
  --line:#dde3ee;
  --line-2:#e9eef5;
  --primary:#1e5eff;
  --primary-2:#1747d8;
  --primary-3:#1236a8;
  --accent:#4a86ff;
  --grad-hero:linear-gradient(135deg,#12377d,#1e5eff);
  --grad-btn:linear-gradient(135deg,#1e5eff,#4a86ff);
}

/* ---------- 重置 ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button,.button{border:0;border-radius:var(--radius-sm);background:var(--grad-btn);color:#fff;padding:11px 22px;cursor:pointer;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:transform .15s,box-shadow .15s,filter .15s}
button:hover,.button:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--shadow-md)}
button.secondary{background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}
button.secondary:hover{background:#fff0e6}
button.danger,.button.danger{background:var(--danger)}
button.wide{width:100%}
input,select,textarea{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-sm);padding:11px 13px;min-width:0;width:100%;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(255,106,0,.35);outline-offset:1px;border-color:var(--primary)}
textarea{resize:vertical}
label{display:block;font-weight:600;margin:12px 0;font-size:14px}
label input,label select,label textarea{display:block;margin-top:6px;font-weight:400}
label input[type=checkbox]{display:inline;width:auto;margin-top:0;vertical-align:-2px}
hr{border:0;border-top:1px solid var(--line);margin:14px 0}

/* ---------- 布局容器 ---------- */
.wrap{max-width:1200px;margin:auto;padding:0 26px}

/* ---------- 顶栏 ---------- */
header{background:#fff;border-bottom:1px solid var(--line-2);position:sticky;top:0;z-index:50;box-shadow:0 1px 8px rgba(0,0,0,.05)}
.topbar{background:#f5f5f5;border-bottom:1px solid var(--line-2)}
.topbar-inner{height:38px;display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:13px}
.user-nav{display:flex;align-items:center;gap:18px}
.user-nav a{color:var(--muted);font-weight:500}
.user-nav a:hover{color:var(--primary)}
.user-nav .publish-btn{background:var(--grad-btn);color:#fff;padding:5px 16px;border-radius:20px;font-weight:600;box-shadow:0 2px 8px rgba(255,106,0,.3)}
.user-nav .publish-btn:hover{filter:brightness(1.06)}
.top{height:76px;display:flex;justify-content:space-between;align-items:center;gap:24px}
.top>a{color:var(--ink-2);font-weight:600;font-size:14px;flex-shrink:0}
.brand{display:flex;align-items:center;gap:12px;font-size:26px;font-weight:900;letter-spacing:.5px;line-height:1.1;color:var(--ink);flex-shrink:0}
.brand-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--grad-hero);color:#fff;font-family:Georgia,serif;font-style:italic;font-size:15px;font-weight:700;letter-spacing:-.5px;box-shadow:0 4px 12px rgba(255,106,0,.28)}
.brand-number{color:var(--primary)}
.brand small{display:block;font-size:10px;font-weight:600;letter-spacing:2px;margin-top:3px;color:var(--muted)}
.top-flags{display:flex;align-items:center;gap:6px}
.flag{display:inline-block;border-radius:3px;overflow:hidden;box-shadow:0 2px 6px rgba(0,0,0,.3);transform-origin:left center;animation:wave 3.2s ease-in-out infinite}
.flag img{width:32px;height:auto;display:block}
.flag:nth-child(2){animation-delay:-1.6s}

/* 语言切换 */
.languages{display:flex;background:#fff;padding:2px;border-radius:6px;font-size:13px;font-weight:600;border:1px solid var(--line);flex-shrink:0}
.languages a{padding:3px 12px;border-radius:5px;color:var(--muted)}
.languages a.active{background:var(--primary);color:#fff}

/* 提示条 */
.notice{background:#fff3ec;border:1px solid #ffd9b8;color:#e05000;padding:10px 16px;border-radius:10px;margin:16px 0;font-size:14px}

/* 搜索框 */
.search{display:flex;flex:1;max-width:620px;align-items:center;background:#fff;border:2px solid var(--primary);border-radius:8px;overflow:hidden;margin-left:auto}
.search input{flex:1;min-width:0;padding:0 14px;border:0;background:#fff;color:var(--ink);font-size:14px;height:42px}
.search input::placeholder{color:#bbb}
.search select{width:112px;flex-shrink:0;border:0;border-radius:0;background:#fff;color:var(--ink-2);font-size:13px;height:42px;padding:0 10px;border-right:1px solid var(--line-2)}
.search button{padding:0 22px;height:42px;border-radius:0;background:var(--primary);color:#fff;font-size:15px;font-weight:700;white-space:nowrap;flex-shrink:0}
.search button:hover{background:var(--primary-2);transform:none;box-shadow:none;filter:none}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- 分类导航 ---------- */
.category-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding:22px 0 4px}
.category-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:20px 8px 16px;background:#fff;border:1px solid var(--line-2);border-radius:var(--radius);color:var(--ink-2);transition:transform .15s,box-shadow .15s}
.category-nav a:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.category-nav a.selected{border-color:var(--primary);background:#fff8f3}
.cat-icon{display:grid;place-items:center;width:54px;height:54px;border-radius:50%;color:#fff}
.cat-icon svg{width:27px;height:27px;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;fill:none}
.cat-name{font-size:14px;font-weight:600;color:var(--ink-2)}
.category-nav a.selected .cat-name{color:var(--primary)}
/* 分类图标颜色（58同城多彩分类） */
.cat-business{background:linear-gradient(135deg,#ff8a2e,#ff6a00)}
.cat-goods{background:linear-gradient(135deg,#ff7a7a,#ee3b3b)}
.cat-transfer{background:linear-gradient(135deg,#5aa8ff,#1677ff)}
.cat-jobs{background:linear-gradient(135deg,#3cc98c,#0aa06a)}
.cat-rent{background:linear-gradient(135deg,#a78bff,#7b61ff)}
.cat-vehicles{background:linear-gradient(135deg,#3fc8c8,#13a8a8)}
.cat-exchange{background:linear-gradient(135deg,#ffc53d,#fa8c16)}
.cat-visa{background:linear-gradient(135deg,#5c7cfa,#4c6ef5)}

/* ---------- 广告 ---------- */
.ad-strip{display:flex;gap:16px;margin:18px 0 0;flex-wrap:wrap}
.ad-box{display:flex;align-items:center;gap:20px;padding:20px 24px;min-height:140px;background:linear-gradient(135deg,#fff7e6,#ffeccb);border:1px solid #f5cf8a;border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s;flex:1;min-width:300px;position:relative;overflow:hidden}
.ad-box::before{content:"广告";position:absolute;right:14px;bottom:-26px;font-size:110px;font-weight:900;color:rgba(255,106,0,.07);pointer-events:none;line-height:1}
.ad-box:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.ad-img{width:200px;height:110px;object-fit:cover;border-radius:10px;flex-shrink:0;box-shadow:0 4px 14px rgba(0,0,0,.12)}
.ad-content{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px;position:relative;z-index:1}
.ad-content small{font-size:12px;color:#d9820a;font-weight:800;letter-spacing:2px}
.ad-content strong{color:#7a4a00;font-size:20px;line-height:1.35}
.ad-desc{font-size:13px;color:#8a6430;margin:0;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ad-arrow{color:#d9820a;font-size:24px;flex-shrink:0;position:relative;z-index:1}

/* ---------- 汇率 + 联系作者 ---------- */
.rate-contact{display:flex;gap:16px;margin:16px 0 0;flex-wrap:wrap}
.rate-bar{display:flex;align-items:center;gap:16px;padding:18px 22px;background:linear-gradient(135deg,#e8f4ff,#d9ecff);border:1px solid #bcdcff;border-radius:var(--radius);flex:1;min-width:300px}
.rate-label{font-size:13px;font-weight:800;color:#1677ff;letter-spacing:1px;flex-shrink:0;padding:5px 14px;background:#fff;border-radius:20px;box-shadow:var(--shadow-sm)}
.rate-main{display:flex;flex-direction:column;gap:3px}
.rate-main strong{font-size:18px;color:#0b3d80}
.rate-main small{font-size:12px;color:#6a8ab0}
.contact-author{display:flex;align-items:center;gap:14px;padding:18px 22px;background:linear-gradient(135deg,#e8fbf0,#d4f5e2);border:1px solid #b5e6ca;border-radius:var(--radius);flex:1;min-width:300px;transition:transform .15s,box-shadow .15s}
.contact-author:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.wa-icon{width:44px;height:44px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;font-size:22px;flex-shrink:0}
.wa-text{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}
.wa-text strong{font-size:16px;color:#0a6b3a}
.wa-text small{font-size:12px;color:#2f8f57}
.wa-arrow{color:#0a6b3a;font-size:22px;flex-shrink:0}

/* ---------- 区块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:26px 0 16px}
.section-head h2{font-size:26px;font-weight:800;color:var(--ink);letter-spacing:-.3px}
.section-head .kicker{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--primary);text-transform:uppercase}
.section-head .muted{font-size:13px;color:var(--muted)}
.section-head a{font-size:14px;color:var(--primary);font-weight:600}

/* ---------- 信息列表 ---------- */
.info-list{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-2);border-radius:var(--radius);overflow:hidden}
.info-item{display:flex;gap:16px;padding:16px 18px;border-bottom:1px solid var(--line-2);transition:background .15s}
.info-item:last-child{border-bottom:0}
.info-item:hover{background:#fff8f3}
.info-thumb{flex:0 0 132px;width:132px;height:96px;border-radius:6px;overflow:hidden;background:#f5f5f5}
.info-thumb img{width:100%;height:100%;object-fit:cover}
.info-main{flex:1;min-width:0;display:flex;flex-direction:column}
.info-main h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.info-item:hover .info-main h3{color:var(--primary)}
.info-desc{font-size:13px;color:var(--muted);margin-top:5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.info-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:8px;font-size:12px;color:var(--muted)}
.info-tag{background:#fff3ec;color:var(--primary);padding:2px 8px;border-radius:4px;font-weight:600;flex-shrink:0}
.info-price{color:var(--primary);font-size:16px;font-weight:800;margin-left:auto}
.placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:100%;height:100%;color:#fff;background:var(--grad-hero)}
.placeholder span{font-size:26px;font-weight:800}
.placeholder small{font-size:10px;letter-spacing:2px;opacity:.8}
.eyebrow{font-size:11.5px;font-weight:700;color:var(--primary)}

/* 空状态 */
.empty{grid-column:1/-1;text-align:center;padding:48px 20px;color:var(--muted)}
.empty>span{font-size:40px;display:block;margin-bottom:8px}
.empty h3{font-size:18px;color:var(--ink-2)}
.empty p{font-size:14px;margin:6px 0 14px}
.empty a{color:var(--primary);font-weight:600}

/* 分页 */
.pagination{display:flex;align-items:center;justify-content:center;gap:14px;margin:26px 0 8px}
.pagination a,.pagination span{display:grid;place-items:center;min-width:40px;height:40px;border-radius:11px;background:#fff;border:1px solid var(--line);font-weight:600;color:var(--ink-2)}
.pagination a:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- 详情页 ---------- */
.detail{padding-top:26px}
.back{display:inline-block;margin-bottom:16px;color:var(--muted);font-size:14px;font-weight:600}
.back:hover{color:var(--primary)}
.detail-grid{display:grid;grid-template-columns:1fr 320px;gap:22px;align-items:start}
.gallery{display:grid;gap:10px;margin-bottom:18px}
.gallery img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.paper{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.detail h1{font-size:26px;font-weight:800;line-height:1.4;margin:6px 0 8px}
.detail .muted{color:var(--muted);font-size:13px}
.body-text{white-space:pre-wrap;line-height:1.8;margin:14px 0;color:var(--ink-2)}
.contact{position:sticky;top:90px}
.price{font-size:28px;color:var(--primary);font-weight:800;margin:4px 0}
.phone{font-size:18px;font-weight:700;color:var(--ink);margin:8px 0}
.button{width:100%;margin-top:12px}

/* ---------- 页脚 ---------- */
footer{margin-top:40px;background:#fff;border-top:1px solid var(--line-2);padding:30px 0;color:var(--muted);font-size:13px}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
footer strong{color:var(--ink);font-size:17px}
footer small{display:block;margin-top:4px}
.copyright{color:var(--muted)}

/* ---------- 后台 ---------- */
.admin{padding-top:26px}
.admin .section-head{align-items:flex-start}
.admin h1{font-size:30px;font-weight:800}
.admin h2{font-size:20px;font-weight:800}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0}
.stats>div{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.stats strong{display:block;font-size:30px;color:var(--primary);font-variant-numeric:tabular-nums}
.stats span{font-size:13px;color:var(--muted)}
.analytics{margin:22px 0}
.traffic-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.traffic-stats>div{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.traffic-stats>div:first-child{background:var(--grad-hero);color:#fff;border:0}
.traffic-stats strong{display:block;font-size:32px;line-height:1.4;font-variant-numeric:tabular-nums}
.traffic-stats span{font-size:13px}
.traffic-stats small{font-size:11px;opacity:.66}
.trend{margin-top:16px;padding:6px 20px}
.trend summary{cursor:pointer;font-weight:700;color:var(--ink-2);padding:10px 0}
.trend-row{display:grid;grid-template-columns:2fr 1fr 1fr;padding:9px 0;border-bottom:1px solid var(--line-2);font-size:13px}
.trend-row:last-child{border:0}
.trend-head{margin-top:12px;color:var(--muted);font-size:12px}
.metric-note{font-size:11.5px;line-height:1.8;margin-top:14px;color:var(--muted)}
.admin-list{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.admin-row{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow-sm)}
.admin-row h3{font-size:15px;font-weight:700}
.admin-row .status{display:inline-block;font-size:11px;font-weight:700;padding:2px 9px;border-radius:6px;background:var(--surface-2);color:var(--muted)}
.admin-row .status.published{background:#e3f7ee;color:#0a8a55}
.admin-row .status.draft{background:#fff3d6;color:#9a6b0d}
.admin-row .status.trash{background:#fdeaea;color:#c0392b}
.admin-row .status.pending{background:#fff3ec;color:#ff6a00}
.admin-row .actions{flex-shrink:0}
.admin-row .actions a{font-size:13px;color:var(--primary);font-weight:600;padding:6px 10px;border-radius:8px}
.admin-row .actions a:hover{background:var(--surface-2)}
button.text-button{background:none;color:var(--primary);padding:6px 10px;font-size:13px;box-shadow:none}
button.text-button.danger{color:var(--danger)}
button.text-button:hover{background:var(--surface-2);transform:none;box-shadow:none;filter:none}
.auth{max-width:420px;margin:60px auto}
.auth .kicker{color:var(--primary);font-size:11px;letter-spacing:2px;font-weight:700}
.auth h1{font-size:26px;font-weight:800;margin:8px 0}
.auth .muted{font-size:14px;margin-bottom:18px}
.editor-form{padding:26px;max-width:820px}
.editor-form h2{font-size:17px;font-weight:800;margin:22px 0 4px;padding-top:8px;border-top:1px solid var(--line-2)}
.editor-form h2:first-child{border:0;margin-top:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.image-editor{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.image-editor label{position:relative;margin:0;width:120px}
.image-editor img{width:120px;height:90px;object-fit:cover;border-radius:9px;border:1px solid var(--line)}

/* ---------- 移动端底部导航 ---------- */
.bottom-nav{display:none;position:fixed;left:0;right:0;bottom:0;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-top:1px solid var(--line);z-index:60;padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
.bottom-nav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 2px;font-size:11px;font-weight:600;color:var(--muted);border-radius:10px}
.bottom-nav a.active{color:var(--primary)}
.bottom-nav svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.bottom-nav .fab{width:46px;height:46px;border-radius:50%;background:var(--grad-btn);color:#fff;display:grid;place-items:center;margin-top:-18px;box-shadow:0 6px 16px rgba(255,106,0,.4)}
.bottom-nav .fab svg{stroke-width:2.2}
body.has-bottom-nav{padding-bottom:64px}

/* ---------- 动画 ---------- */
@keyframes wave{0%,100%{transform:rotateY(0deg)}25%{transform:rotateY(24deg)}75%{transform:rotateY(-24deg)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ---------- 响应式 ---------- */
@media(max-width:1000px){
  .category-nav{grid-template-columns:repeat(3,1fr)}
  .traffic-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .wrap{padding:0 16px}
  .topbar-inner{height:34px;font-size:12px}
  .user-nav{gap:12px}
  .user-nav .publish-btn{padding:4px 10px}
  .top{height:auto;flex-wrap:wrap;padding:10px 0;gap:10px}
  .brand{font-size:20px;gap:8px}
  .brand-icon{width:38px;height:38px;font-size:13px;border-radius:10px}
  .brand small{font-size:8px;letter-spacing:1.2px}
  .search{flex:1 1 100%;max-width:none;order:3}
  .search input{height:40px;font-size:14px}
  .search select{width:96px;height:40px;font-size:12px}
  .search button{height:40px;padding:0 16px;font-size:14px}
  .category-nav{grid-template-columns:repeat(3,1fr);gap:8px;padding:16px 0 2px}
  .category-nav a{padding:14px 4px 12px;gap:7px}
  .cat-icon{width:44px;height:44px}
  .cat-icon svg{width:22px;height:22px}
  .cat-name{font-size:12px}
  .ad-strip{flex-direction:column;gap:10px}
  .ad-box{min-width:0;padding:14px 16px;gap:12px}
  .ad-img{width:110px;height:72px}
  .ad-content strong{font-size:16px}
  .ad-desc{font-size:12px}
  .section-head h2{font-size:20px}
  .info-item{gap:10px;padding:12px 12px}
  .info-thumb{flex:0 0 96px;width:96px;height:72px}
  .info-main h3{font-size:14px}
  .info-desc{font-size:12px}
  .info-meta{gap:8px;font-size:11px}
  .info-price{font-size:14px}
  .info-tag{padding:1px 6px}
  .detail-grid{grid-template-columns:1fr}
  .contact{position:static}
  .paper{padding:18px}
  .detail h1{font-size:21px}
  .form-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stats>div:first-child{grid-column:1/-1}
  .traffic-stats{grid-template-columns:1fr 1fr}
  .admin-row{flex-direction:column;align-items:flex-start}
  .bottom-nav{display:flex}
  body.has-bottom-nav{padding-bottom:70px}
  footer{padding-bottom:76px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}