/* ============ 课程中心 course.css ============ */
.crumb{max-width:1200px;margin:0 auto;padding:14px 10px;font-size:13px;color:#888;}
.crumb a{color:#888;}
.crumb a:hover{color:#c8102e;}
.crumb span{margin:0 6px;color:#ccc;}

.course-wrap{max-width:1200px;margin:0 auto;padding:10px;}
.course-head{text-align:center;padding:26px 0 10px;}
.course-head h1{font-size:26px;color:#222;margin-bottom:8px;}
.course-head p{color:#888;font-size:14px;}

/* 搜索 */
.course-search{display:flex;justify-content:center;margin:18px 0 24px;}
.course-search input{width:420px;max-width:70%;height:42px;border:1px solid #ddd;border-radius:4px 0 0 4px;padding:0 14px;font-size:14px;outline:none;}
.course-search button{height:42px;padding:0 26px;background:#c8102e;color:#fff;border:0;border-radius:0 4px 4px 0;cursor:pointer;font-size:15px;}

/* Tab */
.course-tabs{display:flex;flex-wrap:wrap;justify-content:center;border-bottom:2px solid #eee;margin-bottom:26px;}
.course-tabs a{padding:12px 22px;font-size:16px;color:#444;position:relative;top:2px;border-bottom:3px solid transparent;}
.course-tabs a.active{color:#c8102e;border-bottom-color:#c8102e;font-weight:bold;}

/* 卡片网格 */
.course-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.course-card{position:relative;border:1px solid #eee;border-radius:8px;overflow:hidden;background:#fff;transition:.2s;display:flex;flex-direction:column;}
.course-card:hover{box-shadow:0 6px 20px rgba(0,0,0,.1);transform:translateY(-3px);}
.course-card .cover{width:100%;height:150px;object-fit:cover;background:#f5f5f5;}
.course-card .body{padding:14px;flex:1;display:flex;flex-direction:column;}
.course-card h3{font-size:16px;color:#222;margin-bottom:8px;line-height:1.4;}
.course-card .tags{margin-bottom:8px;}
.course-card .tags em{display:inline-block;background:#fff2f3;color:#c8102e;font-style:normal;font-size:12px;padding:2px 8px;border-radius:3px;margin:0 6px 6px 0;}
.course-card .desc{color:#888;font-size:13px;flex:1;margin-bottom:10px;}
.course-card .foot{display:flex;justify-content:space-between;align-items:center;}
.course-card .price{color:#ff6a00;font-size:16px;font-weight:bold;}
.course-card .price small{font-size:12px;font-weight:normal;}
.course-card .btn{background:#c8102e;color:#fff;font-size:13px;padding:6px 14px;border-radius:4px;}
.course-card .subsite-flag{position:absolute;right:0;bottom:0;background:#2b6cb0;color:#fff;font-size:12px;padding:4px 10px;border-radius:8px 0 0 0;}

/* 系列页分组 */
.series-block{margin-bottom:34px;}
.series-block h2{font-size:20px;color:#222;border-left:4px solid #c8102e;padding-left:10px;margin-bottom:16px;}

/* 详情页 */
.detail-layout{display:flex;gap:24px;align-items:flex-start;}
.detail-side{width:240px;flex-shrink:0;border:1px solid #eee;border-radius:8px;overflow:hidden;}
.detail-side .side-top{background:#c8102e;color:#fff;padding:12px 16px;font-size:15px;}
.detail-side dl{padding:6px 0;}
.detail-side dt{padding:8px 16px;font-weight:bold;color:#333;font-size:14px;}
.detail-side dd{padding:6px 16px 6px 26px;font-size:13px;}
.detail-side dd a{color:#666;}
.detail-side dd a.on,.detail-side dd a:hover{color:#c8102e;}
.detail-main{flex:1;min-width:0;}
.detail-hd{border-bottom:1px solid #eee;padding-bottom:16px;margin-bottom:20px;}
.detail-hd h1{font-size:24px;color:#222;margin-bottom:12px;}
.detail-hd .tags em{display:inline-block;background:#fff2f3;color:#c8102e;font-style:normal;font-size:13px;padding:3px 10px;border-radius:3px;margin:0 8px 8px 0;}
.detail-sec{margin-bottom:26px;}
.detail-sec h2{font-size:18px;color:#222;border-left:4px solid #c8102e;padding-left:10px;margin-bottom:14px;}
.benefit-list{display:flex;flex-wrap:wrap;gap:12px;}
.benefit-list li{background:#f8f8f8;border-radius:6px;padding:12px 16px;font-size:14px;color:#444;flex:1;min-width:200px;list-style:none;}
.detail-sec table{width:100%;border-collapse:collapse;}
.detail-sec table th,.detail-sec table td{border:1px solid #eee;padding:10px;font-size:14px;text-align:center;}
.detail-sec table th{background:#fafafa;}
.subsite-tip{background:#f0f7ff;border:1px dashed #2b6cb0;border-radius:6px;padding:16px;text-align:center;margin:24px 0;}
.subsite-tip a{color:#2b6cb0;font-weight:bold;}
.apply-bar{position:fixed;right:20px;bottom:120px;z-index:99;display:flex;flex-direction:column;gap:10px;}
.apply-bar a{display:block;background:#c8102e;color:#fff;padding:12px 14px;border-radius:6px;text-align:center;font-size:14px;writing-mode:vertical-lr;letter-spacing:2px;}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.related-grid a{border:1px solid #eee;border-radius:6px;padding:12px;font-size:14px;color:#333;}
.related-grid a:hover{color:#c8102e;border-color:#c8102e;}

/* ===== 顶部课程中心 mega 下拉 ===== */
.nav-course{position:relative;}
.nav-course .mega{display:none;position:absolute;left:0;top:100%;z-index:999;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.12);border-top:2px solid #c8102e;min-width:760px;}
.nav-course:hover .mega{display:block;}
.nav-course .mega-inner{display:flex;padding:20px;gap:20px;}
.nav-course .mega-col{flex:1;min-width:160px;}
.nav-course .mega-col-title{display:block;font-size:15px;font-weight:bold;color:#222;padding-bottom:8px;margin-bottom:8px;border-bottom:1px solid #eee;}
.nav-course .mega-col-title:hover{color:#c8102e;}
.nav-course .mega-sub{list-style:none;margin:0;padding:0;}
.nav-course .mega-sub li{margin-bottom:6px;}
.nav-course .mega-sub li a{font-size:13px;color:#666;}
.nav-course .mega-sub li a:hover{color:#c8102e;}
/* ===== 公司介绍蓝色区域 ===== */
.company-intro-blue{
    background:linear-gradient(135deg,#0066cc 0%,#1a4a8a 60%,#2264a8 100%);
    color:#fff;
    padding:60px 20px;
}
.company-intro-inner{
    max-width:1100px;
    margin:0 auto;
}
.company-intro-title{
    font-size:26px;
    font-weight:bold;
    margin-bottom:28px;
    padding-bottom:14px;
    border-bottom:2px solid rgba(255,255,255,.25);
    display:inline-block;
}
.company-intro-p{
    font-size:15px;
    line-height:2;
    margin-bottom:18px;
    color:rgba(255,255,255,.92);
}
.company-intro-p .hl{
    color:#ffe066;
    font-weight:bold;
}
.company-contact-bar{
    display:flex;
    flex-wrap:wrap;
    gap:30px;
    margin-top:32px;
    padding-top:24px;
    border-top:1px solid rgba(255,255,255,.18);
    font-size:14px;
    color:rgba(255,255,255,.85);
}
.company-contact-bar span{
    display:flex;
    align-items:center;
    gap:8px;
}
.ico-phone,.ico-wechat,.ico-addr{
    display:inline-block;
    width:18px;
    height:18px;
    background:rgba(255,255,255,.15);
    border-radius:50%;
    flex-shrink:0;
}
.ico-phone::before{content:'☎';font-size:12px;line-height:18px;text-align:center;display:block;color:#ffe066;}
.ico-wechat::before{content:'微';font-size:11px;line-height:18px;text-align:center;display:block;color:#ffe066;font-weight:bold;}
.ico-addr::before{content:'⌖';font-size:13px;line-height:18px;text-align:center;display:block;color:#ffe066;}

/* 新增课程区 */
.company-new-courses{
    max-width:1200px;
    margin:0 auto 50px;
    padding:0 20px;
}
.company-inner{
    max-width:1200px;
    margin:0 auto;
}
.section-title{
    font-size:22px;
    color:#222;
    border-left:4px solid #c8102e;
    padding-left:12px;
    margin-bottom:24px;
}

/* 响应式 */
@media (max-width:768px){
    .company-intro-blue{padding:36px 16px;}
    .company-intro-title{font-size:20px;margin-bottom:18px;}
    .company-intro-p{font-size:14px;line-height:1.9;}
    .company-contact-bar{flex-direction:column;gap:14px;}
}

/* ===== 页脚课程内链 ===== */
.footer-course{max-width:1200px;margin:0 auto;padding:20px 10px;border-top:1px solid #333;}
.footer-course .fc-col{display:inline-block;vertical-align:top;width:24%;margin-bottom:14px;}
.footer-course .fc-col h4{color:#ddd;font-size:14px;margin-bottom:8px;}
.footer-course .fc-col a{display:block;color:#999;font-size:12px;line-height:1.9;}
.footer-course .fc-col a:hover{color:#fff;}
/* ==================== 响应式适配 ==================== */

/* 平板及以下 (≤768px) */
@media (max-width:768px){
  /* 面包屑 */
  .crumb{font-size:12px;padding:10px;}

  /* 头部 */
  .course-head{padding:18px 0 8px;}
  .course-head h1{font-size:20px;}
  .course-head p{font-size:13px;}

  /* 搜索 */
  .course-search{margin:12px 0 18px;padding:0 10px;}
  .course-search input{width:100%;max-width:100%;font-size:13px;}
  .course-search button{padding:0 16px;font-size:14px;white-space:nowrap;}

  /* 分类Tab - 横向滚动 */
  .course-tabs{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;justify-content:flex-start;padding-bottom:4px;}
  .course-tabs a{flex-shrink:0;padding:10px 16px;font-size:14px;white-space:nowrap;}

  /* 卡片网格: 4→2 */
  .course-grid,.related-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
  .course-card .cover{height:110px;}
  .course-card h3{font-size:14px;}
  .course-card .body{padding:10px;}
  .course-card .desc{font-size:12px;}
  .course-card .btn{font-size:12px;padding:5px 10px;}
  .course-card .price{font-size:14px;}

  /* 系列页 */
  .series-block{margin-bottom:24px;}
  .series-block h2{font-size:17px;}

  /* 详情页布局 */
  .detail-layout{flex-direction:column;gap:16px;}
  .detail-side{width:100%;border-radius:6px;}
  .detail-side dl{max-height:300px;overflow-y:auto;}
  .detail-main{min-width:0;}
  .detail-hd h1{font-size:20px;}
  .detail-sec h2{font-size:16px;}

  /* 价值列表: 两列 */
  .benefit-list{gap:8px;}
  .benefit-list li{min-width:0;flex:0 0 calc(50% - 4px);font-size:13px;padding:10px 12px;}

  /* 表格溢出滚动 */
  .detail-sec .rich{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .detail-sec .rich table{min-width:600px;}

  /* 报名表单 */
  .course-form{max-width:100% !important;}

  /* 侧边悬浮按钮: 缩小 */
  .apply-bar{right:8px;bottom:80px;gap:8px;}
  .apply-bar a{padding:8px 10px;font-size:12px;border-radius:4px;}

  /* 子站提示 */
  .subsite-tip{font-size:13px;padding:12px;}

  /* 导航mega下拉 */
  .nav-course .mega{position:static;min-width:0;box-shadow:none;}
  .nav-course .mega-inner{flex-direction:column;padding:10px;}

  /* 页脚 */
  .footer-course .fc-col{width:48%;}
}

/* 手机 (≤480px) */
@media (max-width:480px){
  .course-wrap{padding:0 8px;}

  /* 卡片: 2→1 */
  .course-grid,.related-grid{grid-template-columns:1fr;}
  .course-card .cover{height:160px;}

  /* 价值列表: 单列 */
  .benefit-list li{flex:0 0 100%;}

  /* 头部字体 */
  .course-head h1{font-size:18px;}
  .detail-hd h1{font-size:18px;}

  /* 侧边悬浮按钮水平排列 */
  .apply-bar{right:0;bottom:0;left:0;flex-direction:row;justify-content:center;gap:0;background:#fff;padding:8px;box-shadow:0 -2px 8px rgba(0,0,0,.1);border-radius:0;}
  .apply-bar a{writing-mode:horizontal-tb;flex:1;padding:10px;font-size:14px;border-radius:4px;}

  /* 页脚 */
  .footer-course .fc-col{width:100%;}
}