/* ============================================================
   考证培训子站 · 自适应模板样式（一套页面 PC/移动共用）
   换肤：后台颜色字段输出 :root{--brand:#xxx} 即可整站变色
   预览：URL 加 ?theme=blue 切换电工蓝
   ============================================================ */
:root{
  --brand:#D85A30;
  --brand-dark:color-mix(in srgb, var(--brand) 75%, #000);
  --brand-light:color-mix(in srgb, var(--brand) 12%, #fff);
  --ink:#222;
  --muted:#777;
  --line:#e8e6e0;
  --bg:#f7f6f3;
  --radius:10px;
  --container:1140px;
}
html[data-theme="blue"]{ --brand:#185FA5; }

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;font-size:15px;line-height:1.7;color:var(--ink);background:var(--bg)}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
input,select,button{font-family:inherit}

.container{max-width:var(--container);margin:0 auto;padding:0 16px}

/* ---------- 顶部通栏 ---------- */
.topbar{background:#26241f;color:#b8b4aa;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding-top:7px;padding-bottom:7px}
.topbar-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.topbar .tel{color:#fff}
.topbar .tel b{color:var(--brand-light);font-size:14px}

/* ---------- 头部 ---------- */
.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header .container{display:flex;align-items:center;gap:14px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:9px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600}
.logo-name{font-size:18px;font-weight:600;line-height:1.2}
.logo-sub{font-size:12px;color:var(--muted);line-height:1.2}
.nav{display:flex;gap:22px;margin-left:auto;font-size:15px}
.nav a{padding:6px 0;color:#444}
.nav a.active,.nav a:hover{color:var(--brand);font-weight:600}
.header-cta{flex-shrink:0}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;margin-left:auto;position:relative}
.nav-toggle span,.nav-toggle span:before,.nav-toggle span:after{content:"";position:absolute;left:50%;width:18px;height:2px;background:#444;transform:translateX(-50%);transition:.2s}
.nav-toggle span{top:50%}
.nav-toggle span:before{top:-6px}
.nav-toggle span:after{top:6px}
.m-menu{display:none;background:#fff;border-bottom:1px solid var(--line);z-index:49}
.m-menu.open{display:block}
.m-menu a{display:block;padding:12px 20px;border-top:1px solid var(--line);font-size:15px}
.m-menu a.active{color:var(--brand);font-weight:600}

/* ---------- 底部 Tab 导航（移动端） ---------- */
.tabbar{display:none;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);z-index:60}
.tabbar .container{display:flex}
.tabbar a{flex:1;text-align:center;padding:7px 0 9px;font-size:12px;color:#888}
.tabbar a .ico{display:block;font-size:17px;line-height:1.3;font-style:normal}
.tabbar a.active{color:var(--brand);font-weight:600}

/* ---------- 按钮 ---------- */
.btn{display:inline-block;border-radius:8px;font-size:15px;padding:10px 24px;border:1px solid transparent;cursor:pointer;text-align:center;transition:.15s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{border-color:#fff;color:#fff}
.btn-outline{border-color:var(--brand);color:var(--brand);background:#fff}
.btn-outline:hover{background:var(--brand-light)}
.btn-white{background:#fff;color:var(--brand-dark)}
.btn-block{display:block;width:100%}
.btn-sm{padding:7px 16px;font-size:14px}

/* ---------- 首页主视觉 ---------- */
.hero{background:var(--brand);color:#fff}
.hero .container{display:grid;grid-template-columns:1.35fr 1fr;gap:32px;align-items:center;padding-top:48px;padding-bottom:48px}
.hero-tag{font-size:13px;letter-spacing:3px;opacity:.85}
.hero h1{font-size:34px;font-weight:600;line-height:1.3;margin:8px 0 6px}
.hero-sub{font-size:16px;opacity:.92;margin-bottom:18px}
.hero-actions{display:flex;gap:12px;margin-bottom:26px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px}
.hero-stats b{font-size:22px;font-weight:600;display:block;line-height:1.3}
.hero-stats span{font-size:13px;opacity:.85}
.form-card{background:#fff;border-radius:12px;padding:22px;color:var(--ink)}
.form-card h3{font-size:17px;margin-bottom:4px}
.form-card .form-tip{font-size:12px;color:var(--muted);margin-bottom:6px}
.form-card input,.form-card select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;margin-top:10px;background:#fff;outline:none}
.form-card input:focus,.form-card select:focus{border-color:var(--brand)}
.form-card .btn{margin-top:14px}
.form-note{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}

/* ---------- 快捷入口（移动端展示） ---------- */
.quick{display:none;padding:14px 16px 4px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;text-align:center}
.quick-grid .q{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 0 10px;font-size:13px;color:#555}
.quick-grid .qi{width:40px;height:40px;margin:0 auto 6px;border-radius:10px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;font-style:normal}

/* ---------- 通用分区 ---------- */
.section{padding:52px 0}
.section.white{background:#fff}
.section-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:24px}
.section-head h2{font-size:24px;font-weight:600}
.section-head h2 em{font-style:normal;font-size:13px;color:var(--muted);margin-left:10px;font-weight:400}
.section-head a.more{color:var(--brand);font-size:14px}

/* ---------- 数据带 ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}
.stat-band .s{background:var(--brand-light);border-radius:12px;text-align:center;padding:20px 8px}
.stat-band b{display:block;font-size:26px;font-weight:600;color:var(--brand-dark);line-height:1.3}
.stat-band span{font-size:13px;color:#666}

/* ---------- 学校优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px}
.adv-card .ico{width:44px;height:44px;border-radius:10px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:600;font-style:normal;margin-bottom:14px}
.adv-card h3{font-size:17px;margin-bottom:6px}
.adv-card p{font-size:14px;color:#666}

/* ---------- 课程卡片 ---------- */
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.course-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.2s}
.course-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.course-thumb{height:160px;background:#eceae4;display:flex;align-items:center;justify-content:center;color:#999;font-size:13px}
.course-thumb img{height:160px;width:100%;object-fit: cover;}
.course-body{padding:14px 16px 16px}
.course-tag{font-size:12px;background:var(--brand-light);color:var(--brand-dark);padding:2px 10px;border-radius:6px}
.course-body h3{font-size:16px;margin:8px 0 4px;font-weight:600}
.course-body .meta{font-size:13px;color:var(--muted);margin-bottom:10px}
.course-foot{display:flex;justify-content:space-between;align-items:center}
.course-price{color:var(--brand);font-weight:600;font-size:17px}
.course-more{font-size:13px;color:var(--muted)}

/* ---------- 文章列表 ---------- */
.news-list{background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px 20px;min-width:0;}
.news-item{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.news-item:last-child{border-bottom:none}
.news-item h3{font-size:16px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-item h3 .course-tag{margin-right:8px;white-space:nowrap}
.news-item .date{color:var(--muted);font-size:13px;flex-shrink:0}
.news-item.big{display:block}
.news-item.big h3{white-space:normal;margin-bottom:4px}
.news-item.big p{font-size:14px;color:#666;margin-bottom:6px}

/* ---------- 两栏布局 ---------- */
.two-col,.detail-wrap{display:grid;grid-template-columns:1.7fr 1fr;gap:28px;align-items:start}

/* ---------- 侧栏 ---------- */
.side-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:20px}
.side-card h3{font-size:16px;margin-bottom:12px;padding-left:10px;border-left:3px solid var(--brand)}
.side-card li{padding:8px 0;border-bottom:1px dashed var(--line);font-size:14px;display:flex;justify-content:space-between;gap:8px}
.side-card li:last-child{border-bottom:none}
.side-card .num{color:var(--brand);font-weight:600;margin-right:6px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags a{font-size:13px;border:1px solid var(--line);padding:4px 12px;border-radius:6px;color:#666}
.tags a:hover{color:var(--brand);border-color:var(--brand)}
.side-form input,.side-form select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;margin-top:10px;outline:none}
.side-form input:focus,.side-form select:focus{border-color:var(--brand)}
.side-form .btn{margin-top:12px}

/* ---------- 筛选 / 分页 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.chips a{padding:7px 18px;border-radius:20px;border:1px solid var(--line);background:#fff;font-size:14px;color:#555}
.chips a.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.pager{display:flex;gap:8px;justify-content:center;margin-top:30px}
.pager a{min-width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:14px;padding:0 10px}
.pager a.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- 面包屑 / 内页头 ---------- */
.crumb{font-size:13px;color:var(--muted);padding:16px 0}
.crumb a:hover{color:var(--brand)}
.page-hero{background:var(--brand);color:#fff;padding:40px 0}
.page-hero h1{font-size:26px;font-weight:600}
.page-hero p{opacity:.9;font-size:14px;margin-top:4px}

/* ---------- 详情页 ---------- */
.detail-info{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px}
.detail-thumb{height:280px;background:#eceae4;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#999;margin-bottom:18px}
.detail-title{font-size:22px;font-weight:600;line-height:1.4}
.detail-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:13px;margin:10px 0 0}
.detail-block{margin-top:26px;padding-top:20px;border-top:1px solid var(--line)}
.detail-block h2{font-size:18px;margin-bottom:12px;padding-left:10px;border-left:3px solid var(--brand)}
.outline li{padding:7px 0 7px 24px;position:relative;color:#444;font-size:15px}
.outline li:before{content:"";position:absolute;left:6px;top:16px;width:8px;height:8px;border-radius:50%;background:var(--brand)}
.buy-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;position:sticky;top:80px}
.buy-price{font-size:26px;color:var(--brand);font-weight:600}
.buy-price small{font-size:13px;color:var(--muted);font-weight:400}
.buy-feats{margin:14px 0 6px}
.buy-feats li{font-size:13px;color:#555;padding:4px 0 4px 20px;position:relative}
.buy-feats li:before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.buy-tel{margin-top:12px;text-align:center;font-size:14px;color:#555}
.buy-tel b{color:var(--brand);font-size:17px}

/* ---------- 文章正文 ---------- */
.art-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px}
.art-title{font-size:23px;font-weight:600;line-height:1.4}
.art-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:13px;margin:10px 0 20px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.prose h2{font-size:19px;margin:26px 0 10px;font-weight:600}
.prose h3{font-size:16px;margin:20px 0 8px;font-weight:600}
.prose p{margin-bottom:14px;color:#444}
.prose blockquote{background:var(--brand-light);border-left:3px solid var(--brand);padding:12px 16px;border-radius:0 8px 8px 0;margin:16px 0;font-size:14px;color:#555}
.prose ul{margin:0 0 14px 20px;list-style:disc;color:#444;font-size:15px}
.prose ul li{margin-bottom:6px}
.prose img{max-width: 100%;display: block; margin: 0 auto; height: auto;}
.prev-next{display:flex;justify-content:space-between;gap:12px;margin-top:26px;padding-top:16px;border-top:1px solid var(--line);font-size:14px}
.prev-next a{color:#555; width:50%;white-space: nowrap;text-overflow: ellipsis;}
.prev-next a:hover{color:var(--brand)}

/* ---------- 关于/联系 ---------- */
.about-lede{font-size:16px;color:#444;margin-bottom:16px}
.honor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}
.honor-card{background:#fff;border:1px solid var(--line);border-radius:12px;text-align:center;padding:20px 10px}
.honor-card .ico{width:44px;height:44px;margin:0 auto 10px;border-radius:10px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:600;font-style:normal}
.honor-card p{font-size:14px;color:#555}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.info-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:15px}
.info-list .ico{width:40px;height:40px;flex-shrink:0;border-radius:10px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;font-style:normal}
.info-list b{display:block;font-size:15px}
.info-list span{color:#666;font-size:14px}
.map-ph{height:260px;background:#eceae4;border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#999;font-size:14px;margin-bottom:20px}

/* ---------- 底部 CTA / 页脚 ---------- */
.cta-band{background:var(--brand);color:#fff;padding:40px 0;text-align:center}
.cta-band h2{font-size:22px;font-weight:600;margin-bottom:8px}
.cta-band p{opacity:.9;margin-bottom:18px}
.cta-band .btn-white{background:#fff;color:var(--brand-dark)}
.footer{background:#26241f;color:#b8b4aa;padding-top:40px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-bottom:26px}
.footer h4{color:#fff;font-size:15px;margin-bottom:12px;font-weight:600}
.footer li{padding:3px 0}
.footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:14px 0;text-align:center;font-size:12px}

/* ---------- 主题预览切换（上线接后台颜色字段后可删） ---------- */
.theme-dots{display:flex;align-items:center;gap:6px}
.theme-dots button{width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.75);cursor:pointer}
.dot-orange{background:#D85A30}
.dot-blue{background:#185FA5}

/* ============================================================
   自适应适配（多档断点 + 显隐工具类，参考 dykoo 写法）
   hidden-sm ≤899 隐藏 · hidden-xs ≤599 隐藏 · visible-xs 仅 ≤599 显示
   ============================================================ */
@media (max-width:1199px){
  .hero h1{font-size:30px}
  .nav{gap:16px}
  .hero-stats{gap:28px}
}
@media (max-width:899px){
  body{padding-bottom:58px}
  .topbar .hide-m{display:none}
  .nav,.header-cta{display:none}
  .hidden-sm{display:none!important}
  .nav-toggle{display:block;margin-left:auto}
  .hero .container{grid-template-columns:1fr;padding-top:30px;padding-bottom:30px;gap:22px}
  .hero h1{font-size:24px}
  .hero-sub{font-size:14px}
  .hero-stats{gap:22px}
  .hero-stats b{font-size:19px}
  .quick{display:block}
  .section{padding:34px 0}
  .section-head h2{font-size:20px}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .adv-card{padding:16px}
  .course-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .course-thumb{height:110px}
  .two-col,.detail-wrap{grid-template-columns:1fr}
  .buy-card{position:static}
  .detail-thumb{height:190px}
  .art-box{padding:20px}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:16px}
  .page-hero{padding:26px 0}
  .page-hero h1{font-size:20px}
  .tabbar{display:block}
}
@media (max-width:599px){
  .hidden-xs{display:none!important}
  .news-item.big p{display:none}
  .adv-grid .adv-card:nth-child(n+5){display:none}
  .chips{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}
  .chips a{white-space:nowrap;flex-shrink:0}
  .hero-stats{gap:16px}
  .course-grid{grid-template-columns:1fr}
  .course-thumb{height:150px}
  .detail-thumb{height:160px}
}
@media (min-width:600px){.visible-xs{display:none!important}}
@media print{.theme-dots,.tabbar,.nav-toggle{display:none}}