/* ===== DemoBuilder · 高仿 ai-bot.cn (OneNav 视觉语言) ===== */
:root{
  --theme-color:#f1404b;
  --theme-hover:#d93641;
  --main-radius:8px;
  --main-bg-color:#fff;
  --body-bg:#f6f7f9;
  --main-border-color:rgba(130,130,130,0.15);
  --muted-border-color:rgba(88,88,88,0.05);
  --text:#14171b;
  --text-2:#666;
  --text-3:#888;
  --sidebar-w:220px;
  --header-h:62px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:14px;color:var(--text);background:var(--body-bg);line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{list-style:none;margin:0;padding:0}

/* ===== 顶部导航栏 ===== */
.site-header{
  position:sticky;top:0;z-index:1080;height:var(--header-h);
  background:#fff;border-bottom:1px solid var(--main-border-color);
  display:flex;align-items:center;padding:0 20px;gap:16px;
}
.site-header .logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:18px;white-space:nowrap}
.site-header .logo .dot{width:26px;height:26px;border-radius:7px;background:var(--theme-color);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px}
.site-header .logo b{color:var(--theme-color)}
.header-search{
  flex:1;max-width:560px;margin:0 auto;position:relative;display:flex;
  height:40px;border:1px solid var(--main-border-color);border-radius:var(--main-radius);overflow:hidden;background:#fff;
}
.header-search input{flex:1;border:none;outline:none;padding:0 14px;font-size:14px;background:transparent}
.header-search button{border:none;background:var(--theme-color);color:#fff;padding:0 22px;cursor:pointer;font-size:14px}
.header-search button:hover{background:var(--theme-hover)}
.header-nav{display:flex;align-items:center;gap:18px;white-space:nowrap}
.header-nav a{color:var(--text-2);font-size:14px}
.header-nav a:hover{color:var(--theme-color)}
.header-nav .btn-sub{padding:6px 14px;border:1px solid var(--theme-color);color:var(--theme-color);border-radius:var(--main-radius)}
.header-nav .btn-sub:hover{background:var(--theme-color);color:#fff}
.header-nav .nav-huzhu{display:inline-flex;align-items:center;gap:5px;padding:6px 13px;border-radius:var(--main-radius);background:rgba(241,64,75,0.09);color:var(--theme-color);font-weight:600}
.header-nav .nav-huzhu:hover{background:var(--theme-color);color:#fff}

/* ===== 左侧栏 ===== */
.layout{display:flex;align-items:flex-start}
.sidebar{
  position:sticky;top:var(--header-h);width:var(--sidebar-w);flex:none;
  height:calc(100vh - var(--header-h));overflow-y:auto;padding:18px 12px;
  border-right:1px solid var(--main-border-color);background:#fff;
}
.sidebar .sb-title{font-size:12px;color:var(--text-3);padding:10px 12px 6px;letter-spacing:1px}
.sidebar .sb-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--main-radius);color:var(--text-2);font-size:14px;cursor:pointer}
.sidebar .sb-item .ic{width:18px;text-align:center;color:var(--theme-color);font-size:13px}
.sidebar .sb-item:hover{background:var(--muted-border-color);color:var(--text)}
.sidebar .sb-item.active{background:rgba(241,64,75,0.08);color:var(--theme-color);font-weight:600}

/* ===== 主内容 ===== */
.main{flex:1;min-width:0;padding:22px 26px 60px}
.section{margin-bottom:34px}
.section-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.section-head .bar{width:4px;height:18px;background:var(--theme-color);border-radius:3px}
.section-head h2{font-size:18px;margin:0;font-weight:700}
.section-head .more{margin-left:auto;font-size:13px;color:var(--text-3)}
.section-head .more:hover{color:var(--theme-color)}

/* ===== 工具卡片网格 ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:14px}
.card{
  background:var(--main-bg-color);border:1px solid var(--main-border-color);border-radius:var(--main-radius);
  padding:0;display:flex;flex-direction:column;position:relative;transition:all .3s ease;
  overflow:hidden;
}
.card:hover{transform:translateY(-6px);box-shadow:0 26px 40px -24px rgba(0,36,100,.3);border-color:transparent}
.card .cover{position:relative;width:100%;overflow:hidden;background:#f0f2f5}
.card .cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block;transition:transform .4s}
.card:hover .cover img{transform:scale(1.04)}
.card .info{padding:14px;display:flex;gap:12px}
.card .logo{flex:none;width:46px;height:46px;border-radius:9px;overflow:hidden;background:rgba(128,128,128,.08);display:flex;align-items:center;justify-content:center}
.card .logo img{width:100%;height:100%;object-fit:cover}
.card .logo .ph{font-size:16px;font-weight:700;color:var(--theme-color)}
.card .body{flex:1;min-width:0}
.card .name{font-weight:600;font-size:15px;display:flex;align-items:center;gap:6px}
.card .name .badge-new{font-size:10px;background:var(--theme-color);color:#fff;padding:1px 6px;border-radius:8px;font-weight:400}
.card .brand{font-size:12px;color:var(--text-3)}
.card .desc{font-size:12.5px;color:var(--text-2);margin:6px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .tags{display:flex;flex-wrap:wrap;gap:6px}
.card .tag{font-size:11px;padding:2px 8px;background:rgba(134,134,134,.1);color:var(--text-2);border-radius:10px}
.card .tag.comm{background:rgba(241,64,75,.1);color:var(--theme-color)}
.card .price{position:absolute;right:14px;top:14px;font-size:11px;color:var(--text-3)}

/* 大卡（精选） */
.grid.featured{grid-template-columns:repeat(auto-fill,minmax(290px,1fr))}
.card.lg{padding:16px}
.card.lg .logo{width:54px;height:54px}

/* ===== 推荐位（首页置顶推广区） ===== */
.promo-zone .section-head h2{color:var(--theme-color)}
.card .name .badge-promo{font-size:10px;background:rgba(241,64,75,.12);color:var(--theme-color);padding:1px 6px;border-radius:8px;font-weight:400;margin-left:6px}

/* ===== 排序条（全部工具页） ===== */
.sort-bar{display:flex;align-items:center;gap:8px;margin:0 0 16px}
.sort-label{font-size:13px;color:var(--text-3)}
.sort-bar .fbtn{cursor:pointer}

/* ===== 分类快捷条 ===== */
.cat-strip{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.cat-strip a{padding:8px 16px;background:#fff;border:1px solid var(--main-border-color);border-radius:22px;font-size:13px;color:var(--text-2)}
.cat-strip a:hover{border-color:var(--theme-color);color:var(--theme-color)}

/* ===== 互助广场区块（首页） ===== */
.huzhu-promo{
  display:grid;grid-template-columns:1.3fr 1fr;gap:26px;align-items:center;
  background:linear-gradient(135deg,#fff 0%,#fff6f7 100%);
  border:1px solid rgba(241,64,75,.16);border-radius:12px;padding:24px 26px;
}
.huzhu-promo .hp-kicker{display:inline-block;font-size:12px;font-weight:600;color:var(--theme-color);
  background:rgba(241,64,75,.09);padding:3px 10px;border-radius:20px;margin-bottom:12px}
.huzhu-promo h3{font-size:19px;margin:0 0 10px;font-weight:700;line-height:1.45}
.huzhu-promo p{margin:0 0 16px;color:var(--text-2);font-size:13.5px;line-height:1.8}
.huzhu-promo .hp-btn{display:inline-flex;align-items:center;gap:6px;background:var(--theme-color);
  color:#fff;font-size:13.5px;font-weight:600;padding:10px 20px;border-radius:var(--main-radius);transition:.2s}
.huzhu-promo .hp-btn:hover{background:var(--theme-hover)}
.huzhu-promo .hp-points{display:flex;flex-direction:column;gap:12px;margin:0;padding:0}
.huzhu-promo .hp-points li{background:#fff;border:1px solid var(--main-border-color);
  border-radius:var(--main-radius);padding:12px 14px}
.huzhu-promo .hp-points b{display:block;font-size:13.5px;margin-bottom:3px}
.huzhu-promo .hp-points span{font-size:12.5px;color:var(--text-2);line-height:1.6}
@media(max-width:860px){.huzhu-promo{grid-template-columns:1fr;gap:18px;padding:20px}}
/* 全屏宽度下的侧栏隐藏等移动规则里，互助入口一并隐藏（保持原行为） */

/* ===== 详情页 ===== */
.detail-cover{margin:0 0 18px;background:#fff;border:1px solid var(--main-border-color);border-radius:var(--main-radius);padding:18px 20px;overflow:hidden}
.detail-cover h3{margin:0 0 12px;font-size:16px;display:flex;align-items:center;gap:8px}
.detail-cover h3 .bar{width:4px;height:15px;background:var(--theme-color);border-radius:3px}
.detail-cover img{width:100%;max-height:280px;object-fit:cover;object-position:top;display:block;border-radius:8px}
@media (max-width:900px){.detail-cover{padding:14px}}
.detail-head{display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--main-border-color);border-radius:var(--main-radius);padding:22px;margin-bottom:18px}
.detail-head .logo{width:72px;height:72px;border-radius:14px;overflow:hidden;flex:none;background:rgba(128,128,128,.08);display:flex;align-items:center;justify-content:center}
.detail-head .logo img{width:100%;height:100%;object-fit:cover}
.detail-head .logo .ph{font-size:26px;font-weight:700;color:var(--theme-color)}
.detail-head h1{margin:0 0 4px;font-size:24px}
.detail-head .meta{color:var(--text-3);font-size:13px}
.detail-head .go{margin-left:-8px}
.detail-head .go a{display:inline-block;background:var(--theme-color);color:#fff;padding:10px 22px;border-radius:var(--main-radius);font-size:14px}
.detail-head .go a:hover{background:var(--theme-hover)}
.detail-grid{display:grid;grid-template-columns:1fr 320px;gap:18px}
.panel{background:#fff;border:1px solid var(--main-border-color);border-radius:var(--main-radius);padding:18px 20px;margin-bottom:18px}
.panel h3{margin:0 0 12px;font-size:16px;display:flex;align-items:center;gap:8px}
.panel h3 .bar{width:4px;height:15px;background:var(--theme-color);border-radius:3px}
.panel p{margin:0 0 10px;color:var(--text-2);font-size:13.5px}
.kv{display:flex;padding:9px 0;border-bottom:1px dashed var(--main-border-color);font-size:13.5px}
.kv:last-child{border-bottom:none}
.kv .k{width:96px;flex:none;color:var(--text-3)}
.kv .v{color:var(--text)}
.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:4px}
.tag-row .tag{font-size:12px;padding:3px 10px;background:rgba(134,134,134,.1);color:var(--text-2);border-radius:10px}
.tag-row .tag.comm{background:rgba(241,64,75,.1);color:var(--theme-color)}
.pros{color:#2a8a3e}.cons{color:#c0392b}
.compare-list li{color:var(--text-2);font-size:13px;margin-bottom:6px;padding-left:14px;position:relative}
.compare-list li:before{content:"›";position:absolute;left:0;color:var(--theme-color)}

/* ===== 页脚 ===== */
.site-footer{background:#fff;border-top:1px solid var(--main-border-color);padding:34px 26px;color:var(--text-3);font-size:13px}
.site-footer .cols{display:flex;flex-wrap:wrap;gap:40px;max-width:1100px;margin:0 auto 20px}
.site-footer .col h4{color:var(--text);font-size:14px;margin:0 0 12px}
.site-footer .col a{display:block;color:var(--text-3);margin-bottom:8px}
.site-footer .col a:hover{color:var(--theme-color)}
.site-footer .copy{max-width:1100px;margin:0 auto;border-top:1px solid var(--main-border-color);padding-top:18px;line-height:1.8}

/* ===== 列表页筛选 ===== */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.fbtn{padding:7px 16px;border:1px solid var(--main-border-color);background:#fff;border-radius:20px;font-size:13px;color:var(--text-2);cursor:pointer}
.fbtn:hover{border-color:var(--theme-color);color:var(--theme-color)}
.fbtn.active{background:var(--theme-color);color:#fff;border-color:var(--theme-color)}
.list-search{height:40px;border:1px solid var(--main-border-color);border-radius:var(--main-radius);padding:0 14px;width:280px;font-size:14px;outline:none;margin-bottom:20px}
.list-search:focus{border-color:var(--theme-color)}

/* ===== 面包屑 & 文章 ===== */
.breadcrumb{font-size:13px;color:var(--text-3);margin-bottom:14px}
.breadcrumb a:hover{color:var(--theme-color)}
.post{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--main-border-color);border-radius:var(--main-radius);padding:32px 36px}
.post h1{font-size:26px;margin:0 0 10px}
.post .pmeta{color:var(--text-3);font-size:13px;margin-bottom:24px;border-bottom:1px solid var(--main-border-color);padding-bottom:16px}
.post h2{font-size:19px;margin:28px 0 12px}
.post p{color:var(--text-2);margin:0 0 14px;font-size:15px}
.post table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13.5px}
.post th,.post td{border:1px solid var(--main-border-color);padding:9px 12px;text-align:left}
.post th{background:var(--muted-border-color);color:var(--text)}
.post ul.tips{list-style:disc;padding-left:22px;color:var(--text-2)}
.post ul.tips li{margin-bottom:8px}

/* ===== 响应式 ===== */
.menu-toggle{display:none}
@media (max-width:900px){
  .sidebar{display:none}
  .header-nav{display:none}
  .header-search{max-width:none}
  .menu-toggle{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--main-border-color);border-radius:8px;cursor:pointer;color:var(--text-2);margin-right:4px}
  .detail-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .sidebar.open{display:block;position:fixed;top:var(--header-h);left:0;z-index:1079;background:#fff;height:calc(100vh - var(--header-h));box-shadow:2px 0 12px rgba(0,0,0,.1)}
}
@media (max-width:560px){
  .grid{grid-template-columns:1fr 1fr}
  .main{padding:16px 14px 50px}
  .detail-head{flex-wrap:wrap}
  .post{padding:22px 18px}
}

/* ===== 博客正文增强 ===== */
.post .lead{font-size:16px;color:var(--text);background:var(--muted-border-color);border-left:3px solid var(--theme-color);padding:12px 16px;border-radius:0 var(--main-radius) var(--main-radius) 0;margin-bottom:18px}
.post .note{background:rgba(241,64,75,.06);border:1px solid rgba(241,64,75,.18);border-radius:var(--main-radius);padding:12px 16px;color:var(--text-2);font-size:13.5px;margin:14px 0}
.post ol.tips{list-style:decimal;padding-left:22px;color:var(--text-2)}
.post ol.tips li{margin-bottom:8px}

/* ===== 详情页：工具简介 + 参考依据 ===== */
.desc-full{font-size:14.5px;line-height:1.85;color:var(--text);margin:0 0 12px}.desc-full:last-child{margin-bottom:0}
.src-note{margin:10px 0 0;font-size:12.5px;color:var(--text-2);background:var(--muted-border-color);border-radius:6px;padding:7px 10px}
.src-note a{color:var(--theme-color)}
.refs{display:flex;flex-direction:column;gap:12px}
.ref{border:1px solid var(--main-border-color);border-radius:8px;padding:10px 12px;background:#fff}
.ref-link{display:inline-flex;align-items:baseline;gap:6px;font-weight:600;color:var(--theme-color);text-decoration:none;font-size:14px}
.ref-link:hover{text-decoration:underline}
.ref-url{font-weight:400;font-size:12px;color:var(--text-2)}
.ref-excerpt{margin:8px 0 0;padding:8px 12px;border-left:3px solid var(--theme-color);background:var(--muted-border-color);color:var(--text-2);font-size:13px;line-height:1.7;border-radius:0 6px 6px 0;font-style:italic}

/* ===== 详情页：最新资讯 ===== */
.news{display:flex;flex-direction:column;gap:14px}
.news-item{border-left:3px solid var(--theme-color);padding:2px 0 2px 12px}
.news-date{font-size:12px;color:var(--text-2);margin-bottom:3px}
.news-title{display:block;font-weight:600;color:var(--text);text-decoration:none;font-size:14.5px;line-height:1.5}
.news-title:hover{color:var(--theme-color);text-decoration:underline}
.news-sum{margin:5px 0 6px;font-size:13px;line-height:1.7;color:var(--text-2)}
.news-link{font-size:12.5px;color:var(--theme-color);text-decoration:none}
.news-link:hover{text-decoration:underline}


/* ============================================================
   每日快讯：新闻卡片（区别于工具卡 .card）
   ============================================================ */
.news-hero{
  position:relative;overflow:hidden;border-radius:12px;padding:30px 32px;margin:0 0 24px;
  background:linear-gradient(120deg,#1b1f2a 0%,#2a2f3d 55%,#3a2130 100%);
  color:#fff;
}
.news-hero::after{
  content:"";position:absolute;right:-50px;top:-50px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(241,64,75,.32) 0%,rgba(241,64,75,0) 70%);
}
.news-hero h1{position:relative;z-index:1;font-size:25px;margin:0 0 8px;color:#fff;letter-spacing:.5px}
.news-hero p{position:relative;z-index:1;margin:0;font-size:13.5px;color:rgba(255,255,255,.78);max-width:760px;line-height:1.75}
.news-hero .nh-stats{position:relative;z-index:1;margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.news-hero .nh-stats span{
  font-size:12px;padding:4px 11px;border-radius:12px;
  background:rgba(255,255,255,.12);color:rgba(255,255,255,.9);
}

/* 分类筛选 */
.news-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.news-tabs button{
  font:inherit;font-size:13px;cursor:pointer;padding:6px 15px;border-radius:16px;
  border:1px solid var(--main-border-color);background:#fff;color:var(--text-2);
  transition:all .15s;
}
.news-tabs button:hover{border-color:var(--theme-color);color:var(--theme-color)}
.news-tabs button.on{background:var(--theme-color);border-color:var(--theme-color);color:#fff;font-weight:600}

/* 新闻网格：3 列，卡片带封面 */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.ncard{
  display:flex;flex-direction:column;overflow:hidden;background:#fff;
  border:1px solid var(--main-border-color);border-radius:10px;
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.ncard:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(20,23,27,.1);border-color:rgba(241,64,75,.35)}

/* 封面：纯 CSS 渐变 + 网格纹理，无外部图片依赖 */
.ncard-cover{
  position:relative;height:132px;display:flex;align-items:flex-end;
  padding:14px 16px;overflow:hidden;
}
.ncard-cover::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.09) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:22px 22px;
}
.ncard-cover::after{
  content:"";position:absolute;right:-30px;top:-30px;width:130px;height:130px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22) 0%,rgba(255,255,255,0) 70%);
}
.ncard-cat{
  position:relative;z-index:2;font-size:11px;font-weight:600;letter-spacing:.6px;
  padding:4px 10px;border-radius:4px;background:rgba(0,0,0,.28);color:#fff;
  backdrop-filter:blur(4px);
}
.ncard-date{
  position:relative;z-index:2;margin-left:auto;font-size:11.5px;color:rgba(255,255,255,.9);
  background:rgba(0,0,0,.24);padding:3px 9px;border-radius:4px;
}

/* 封面配色：按分类 */
.nc-1{background:linear-gradient(135deg,#2b5876 0%,#4e4376 100%)}
.nc-2{background:linear-gradient(135deg,#c94b4b 0%,#8e2de2 100%)}
.nc-3{background:linear-gradient(135deg,#0f2027 0%,#203a43 55%,#2c5364 100%)}
.nc-4{background:linear-gradient(135deg,#134e5e 0%,#2b8a6f 100%)}
.nc-5{background:linear-gradient(135deg,#42275a 0%,#734b6d 100%)}
.nc-6{background:linear-gradient(135deg,#b45309 0%,#7c2d12 100%)}
.nc-7{background:linear-gradient(135deg,#1e3c72 0%,#2a5298 100%)}
.nc-8{background:linear-gradient(135deg,#3a1c71 0%,#d76d77 100%)}

.ncard-body{padding:15px 16px 17px;display:flex;flex-direction:column;flex:1}
.ncard-body h3{margin:0 0 8px;font-size:16px;line-height:1.5;color:var(--text);font-weight:600}
.ncard-sum{
  margin:0 0 12px;font-size:13px;line-height:1.72;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1;
}
.ncard-take{
  margin:0 0 12px;font-size:12.5px;line-height:1.65;color:var(--text-2);
  background:var(--muted-border-color);border-left:2px solid var(--theme-color);
  padding:7px 10px;border-radius:0 5px 5px 0;
}
.ncard-foot{
  display:flex;align-items:center;gap:8px;padding-top:11px;
  border-top:1px solid var(--muted-border-color);font-size:12px;color:var(--text-3);
}
.ncard-foot .src{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ncard-foot .go{color:var(--theme-color);font-weight:600;white-space:nowrap}
.ncard-foot .go:hover{text-decoration:underline}

/* 快讯详情页 */
.news-detail{max-width:820px;margin:0 auto}
.nd-back{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--text-3);margin-bottom:16px}
.nd-back:hover{color:var(--theme-color)}
.nd-cover{height:190px;border-radius:12px;margin:0 0 24px}
.nd-meta{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:14px;font-size:13px;color:var(--text-3)}
.nd-cat{font-size:11.5px;font-weight:600;padding:3px 10px;border-radius:4px;background:rgba(241,64,75,.1);color:var(--theme-color)}
.nd-detail h1{font-size:27px;margin:0 0 16px;line-height:1.45}
.nd-sec{margin:0 0 20px;padding:18px 22px;background:#fff;border:1px solid var(--main-border-color);border-radius:10px}
.nd-sec h2{font-size:14px;margin:0 0 10px;color:var(--text-3);font-weight:600;letter-spacing:.5px}
.nd-sec p{margin:0;font-size:15px;line-height:1.88;color:var(--text)}
.nd-take{background:rgba(241,64,75,.05);border-left:3px solid var(--theme-color)}
.nd-src{font-size:13px;color:var(--text-2)}
.nd-src a{color:var(--theme-color);word-break:break-all}
.nd-tools{margin-top:8px;display:flex;flex-wrap:wrap;gap:8px}
.nd-tools a{
  font-size:12.5px;padding:4px 11px;border-radius:14px;background:var(--muted-border-color);color:var(--text-2);
}
.nd-tools a:hover{background:var(--theme-color);color:#fff}
.nd-nav{display:flex;gap:12px;margin-top:26px;padding-top:20px;border-top:1px solid var(--main-border-color)}
.nd-nav a{flex:1;min-width:0;font-size:13px;color:var(--text-2)}
.nd-nav a:hover{color:var(--theme-color)}
.nd-nav .nx{text-align:right}
.nd-nav span{display:block;font-size:11.5px;color:var(--text-3);margin-bottom:3px}

@media (max-width:700px){
  .news-grid{grid-template-columns:1fr}
  .news-hero{padding:22px 20px}
  .news-hero h1{font-size:20px}
  .ncard-cover{height:112px}
  .nd-detail h1{font-size:22px}
  .nd-nav{flex-direction:column;gap:10px}
  .nd-nav .nx{text-align:left}
}

/* ===== 顶栏当前页高亮 ===== */
.header-nav a.on{color:var(--theme-color);font-weight:600}

/* ===== 工具页 FAQ（常见问题面板） ===== */
.panel.faq{padding-bottom:6px}
.panel.faq .faq-item{padding:12px 0 14px;border-bottom:1px dashed #e8eaee}
.panel.faq .faq-item:last-child{border-bottom:none;padding-bottom:4px}
.panel.faq .faq-q{font-weight:600;font-size:14px;color:#2b2f36;margin-bottom:6px;line-height:1.5}
.panel.faq .faq-q::before{content:'Q';display:inline-block;width:18px;height:18px;line-height:18px;text-align:center;font-size:11px;font-weight:700;color:#fff;background:var(--theme-color);border-radius:5px;margin-right:8px;vertical-align:1px}
.panel.faq .faq-a{font-size:13.5px;color:#5a6069;line-height:1.78;padding-left:26px}