/* 全局 */
@charset "UTF-8";
    :root{
      --primary:#0756a3;
      --primary2:#0b77cf;
      --deep:#07345f;
      --text:#1d2733;
      --muted:#627386;
      --light:#f3f8ff;
      --lighter:#f8fbff;
      --border:#dbe7f5;
      --white:#fff;
      --green:#0f9f6e;
      --orange:#f97316;
      --shadow:0 14px 32px rgba(7,52,95,.09);
      --radius:18px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);line-height:1.75;background:#fff}
    a{color:var(--primary);text-decoration:none}
    a:hover{color:var(--primary2);text-decoration:none}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
	
   .w{max-width:1280px;margin:0 auto;width:90%}
   .c{text-align:center;}
   .footer-tool-bar{display:none !important;}	
	
	
    .topbar{background:#062747;color:rgba(255,255,255,.9);font-size:14px;padding:8px 0}
    .topbar .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.98);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 0}
    header .brand {
        background: url(http://www.avtechcn.com/wp-content/themes/avtech/img/logo.png) no-repeat 0 center;
        background-size: 80px auto;
        font-size: 24px;
        padding: 0 0 0 92px;
        color: #111;
        font-weight: bold;
    }	
    .brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary2),#16b6a0);display:grid;place-items:center;color:#fff;font-weight:950}
    .nav-links{display:flex;gap:16px;align-items:center;list-style:none;margin:0;padding:0;font-size:15px}
    .nav-links a{color:#334155;font-weight:850;white-space:nowrap}
    .nav-links a:hover,.nav-links a.active{color:var(--primary)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-actions .topsearch {
        background: #eee;
        border-radius: 6px;
    	position: relative;
    }
    .nav-actions .topsearch .input {
        width: 100%;
        margin: 0;
        padding: 0 10px;
        border: none;
        background: 0 0;
        outline: 0;
        font-size: 14px;
    	line-height: 40px;
        color: #111;
    }
    .nav-actions .topsearch .button {
        background: #0058a3 url(../images/search.png) center no-repeat; 
        color: #fff;
        width: 30px;
        height: 40px;
        line-height: 40px;
        padding: 0;
        border: none;
        text-align: center;
        outline: 0;
        position: absolute;
        right: 0;
        top: 0;
    	border-top-right-radius: 6px;
        border-bottom-right-radius: 6px;
	    cursor:pointer;
    }

    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:6px 18px;border-radius:999px;font-weight:900;border:1px solid transparent;white-space:nowrap}
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(7,86,163,.22)}
    .btn-primary:hover{background:var(--primary2);color:#fff}
    .btn-outline{background:#fff;color:var(--primary);border-color:rgba(7,86,163,.22)}
    .btn-outline:hover{background:var(--light)}
    .breadcrumbnav{background:var(--lighter);border-bottom:1px solid var(--border);font-size:14px;color:var(--muted);padding:9px 0}
    .breadcrumbnav ul{list-style:none;margin:0;padding:0;display:flex;gap:8px;flex-wrap:wrap}
    .breadcrumbnav li:not(:last-child)::after{content:" /";color:#9aacbf}
    .sticky-classbar{position:sticky;top:75px;z-index:40;background:#fffaf0;border-bottom:1px solid #fed7aa;box-shadow:0 4px 12px rgba(249,115,22,.08)}
    .sticky-classbar .container{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:8px 0;font-size:14px}
    .sticky-classbar strong{color:#9a3412}
    .sticky-actions{display:flex;gap:8px;flex-wrap:wrap}
    .small-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:2px 12px;font-weight:900;font-size:13px}
    .small-primary{background:var(--orange);color:#fff}
	a.small-primary:hover{color:#fff;}
    .small-outline{background:#fff;color:#9a3412;border:1px solid #fdba74}
	
	
	
/* 尾部 */
footer {
    width: 100%;
    padding: 70px 0 0 !important;
    background: #31393f;
	float:left;
}
.foot_top{padding:20px 0 0;width:100%;float:left;border-bottom: 1px solid #969696;margin-bottom:20px;}
.foot_logo{
	background:url(../images/footlogo.png) no-repeat;
	height:114px;
	padding:20px 0;
	width:290px;
	float:left;
}
.foot_tel{float:left;color:#fff;width:300px;padding:20px 0;}	
.foot_tel .ftel{font-size:28px;font-weight:bold;line-height: 52px;}
.foot_link{float:right;padding:20px 0; color:#fff}
.foot_link h4,.foot_link .footh4{white-space: nowrap;}
.foot_link ul li p{margin:6px auto 0;font-size:13px;}
.foot_link ul li p a{color:#e2e2e3;}
.foot_link ul li{display:inline-table;width:140px;}
.foot_bottom{color:#fff;width:100%;padding:10px 0;clear: both;font-size:13px;}
.foot_bottom a{color:#808285;}
.foot_bottom .fb_link div{width:100%;margin-bottom:14px;}
.foot_bottom .fb_link div h3{float:left;margin-right:20px;font-weight:normal;}
.foot_bottom .fb_link ul li{display:inline-block;margin-right:20px;color:#808285;}
.foot_bottom .fb_link{
	background:url(../images/qrcode.jpg) 95% 10px no-repeat;
	height:135px;
	padding-bottom: 30px;
}
.beian{color:#808285;text-align: center;margin: 90px 0 20px;}
.foot_bottom ul.fticon {text-align:center;}
.foot_bottom ul.fticon li{
	display:inline-block;
	font-size:16px;
	height: 50px;
    line-height: 50px;
    padding-left: 56px;
	margin-right: 30px;
}
.foot_bottom ul.fticon li a{color:#fff;}
.foot_bottom ul.fticon li:nth-of-type(1){background:url(../images/icon/avedu.png) no-repeat 0 center;background-size:50px;}
.foot_bottom ul.fticon li:nth-of-type(2){background:url(../images/icon/avtmall.png) no-repeat 0 center;background-size:50px;display:none;/*天猫*/}
.foot_bottom ul.fticon li:nth-of-type(3){background:url(../images/icon/avwechat.png) no-repeat 0 center;background-size:50px;}
.foot_bottom ul.fticon li:nth-of-type(4){background:url(../images/icon/avvideo.png) no-repeat 0 center;background-size:50px;}
.foot_bottom ul.fticon li:nth-of-type(5){background:url(../images/icon/avzhihu.png) no-repeat 0 center;background-size:50px;}


.fqrcode .fqrcode_nr{width:100px; padding:10px; background:#fff; text-align:center; position:absolute; display:none;border: 1px solid #fff;height: 100px;}
.fqrcode .fqrcode_nr img{ margin-bottom:5px;width:100%;height:auto;margin:unset;}
.fqrcode .fqrcode_nr .arrow{ width:0; height:0; border-bottom:10px solid #fff;border-left:10px solid transparent;border-right:10px solid transparent; position:absolute; left:50px; top:-10px;}
.fqrcode.on .fqrcode_nr{display:block !important;}
	
	
	/* 新-课程模板 */
	
    .hero{background:radial-gradient(circle at 12% 12%,rgba(11,119,207,.15),transparent 34%),radial-gradient(circle at 86% 18%,rgba(15,159,110,.12),transparent 30%),linear-gradient(180deg,#f8fbff 0%,#fff 100%);padding:60px 0 42px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(7,86,163,.08);border:1px solid rgba(7,86,163,.14);color:var(--primary);font-weight:900;border-radius:999px;padding:6px 12px;font-size:14px;margin-bottom:14px}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.1;letter-spacing:-.035em;color:var(--deep);margin:0 0 14px}
    .hero-subtitle{font-size:clamp(18px,2.3vw,22px);color:#435266;margin:0 0 18px}
    .hero-summary{background:#fff;border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:0 10px 22px rgba(7,52,95,.04);color:#435266;margin:22px 0}
    .hero-summary strong{color:var(--deep)}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-card{background:#fff;border:1px solid rgba(7,86,163,.18);border-radius:26px;padding:26px;box-shadow:var(--shadow)}
    .hero-card h2{margin:0 0 14px;color:var(--deep);font-size:24px}
	.hero-list {
      display: grid;
      gap: 12px;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .hero-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: #475569;
    }

    .check {
      flex: 0 0 22px;
      width: 22px;
      height: 22px;
      display: inline-grid;
      place-items: center;
      border-radius: 999px;
      background: rgba(16,185,129,.12);
      color: var(--accent);
      font-weight: 900;
      line-height: 1;
      margin-top: 3px;
    }
    .meta-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .meta-list li{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--border);color:var(--muted)}
    .meta-list li:last-child{border-bottom:0}
    .meta-list strong{color:var(--text)}
    .section{padding:62px 0}
    .section.alt{background:var(--lighter)}
    .section-head{max-width:900px;margin-bottom:28px}
    .label{color:var(--primary);font-size:13px;font-weight:950;text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}
    h2{font-size:clamp(28px,3.5vw,40px);line-height:1.18;color:var(--deep);letter-spacing:-.02em;margin:0 0 12px}
    h3{color:var(--deep);font-size:21px;margin:0 0 9px}
    .lead{color:var(--muted);font-size:18px;margin:0}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
    .card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:0 8px 20px rgba(7,52,95,.04)}
    .card p{color:var(--muted);margin:0}
    .tag{display:inline-flex;width:fit-content;padding:5px 10px;border-radius:999px;background:rgba(7,86,163,.08);color:var(--primary);font-size:13px;font-weight:950;margin-bottom:10px}
    .tag.green{background:rgba(15,159,110,.1);color:#047857}
    .tag.orange{background:rgba(249,115,22,.1);color:#c2410c}
    .tag.dark{background:rgba(7,52,95,.08);color:var(--deep)}
    .summary-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin: 50px auto;}
    .summary-item{background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px}
    .summary-item strong{display:block;color:var(--deep);font-size:18px;margin-bottom:5px}
    .summary-item span{color:var(--muted);font-size:14px}
    .module{background:#fff;border:1px solid var(--border);border-radius:20px;padding:24px;margin-bottom:16px;box-shadow:0 8px 20px rgba(7,52,95,.04)}
    .module h3{display:flex;align-items:center;gap:10px}
    .module-num{width:34px;height:34px;display:inline-grid;place-items:center;border-radius:999px;background:var(--primary);color:#fff;font-size:14px;flex:0 0 34px}
    .module ul{margin:12px 0 0;padding-left:22px;color:#435266}
    .module li{margin:5px 0}
    .table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:18px;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{text-align:left;padding:15px 17px;border-bottom:1px solid var(--border);vertical-align:top}
    th{background:#f8fbff;color:var(--deep);font-weight:950;white-space:nowrap}
    tr:last-child td{border-bottom:0}
    .quote-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:0 8px 20px rgba(7,52,95,.04)}
    .quote-card h3{font-size:19px}
    .quote-card p{color:#435266;margin:0}
    .quote-meta{color:var(--primary);font-weight:900;font-size:14px;margin-bottom:8px}
	.teacher-card {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 22px;
      align-items: start;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: 0 8px 20px rgba(15,23,42,.04);
    }

    .teacher-avatar {
      width: 120px;
      height: 120px;
      border-radius: 24px;
      background: linear-gradient(135deg, rgba(37,99,235,.14), rgba(16,185,129,.14));
      display: grid;
      place-items: center;
      color: var(--primary-dark);
      font-weight: 950;
      text-align: center;
      padding: 12px;
      line-height: 1.35;
    }
    .path-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: 0 8px 20px rgba(15,23,42,.04);
      margin-bottom: 20px;
    }

    .path-card h3 {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .day-badge {
      display: inline-flex;
      min-width: 52px;
      height: 34px;
      padding: 0 10px;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      background: rgba(37,99,235,.09);
      color: var(--primary-dark);
      font-size: 14px;
      font-weight: 950;
    }

    .path-card ul, .content-block ul {
      margin: 12px 0 0;
      padding-left: 20px;
      color: var(--muted);
    }

    .path-card li, .content-block li {
      margin: 5px 0;
    }

    .details-list {
      display: grid;
      gap: 14px;
    }

    details.content-detail {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    details.content-detail summary {
      cursor: pointer;
      padding: 18px 20px;
      font-weight: 950;
      color: var(--dark);
      list-style: none;
    }

    details.content-detail summary::-webkit-details-marker { display: none; }
    details.content-detail summary::after {
      content: "+";
      float: right;
      color: var(--primary);
      font-size: 20px;
      line-height: 1;
    }
    details.content-detail[open] summary::after { content: "−"; }
    .content-block {
      padding: 0 20px 22px;
      color: var(--muted);
    }

    .content-block h4 {
      color: var(--dark);
      margin: 18px 0 8px;
      font-size: 18px;
    }	
    .faq-list{display:grid;gap:14px}
    details.faq{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden}
    details.faq summary{padding:17px 20px;cursor:pointer;color:var(--deep);font-weight:950;list-style:none}
    details.faq summary::-webkit-details-marker{display:none}
    details.faq summary::after{content:"+";float:right;color:var(--primary);font-size:20px;line-height:1}
    details.faq[open] summary::after{content:"−"}
    details.faq p{padding:0 20px 20px;margin:0;color:var(--muted)}
    .related-card{display:block;background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px;min-height:155px;box-shadow:0 8px 20px rgba(7,52,95,.04)}
    .related-card:hover{border-color:rgba(7,86,163,.35);box-shadow:var(--shadow)}
    .related-card p{color:var(--muted);margin:0}
    .path-note{background:#f0f7ff;border:1px solid #bfdbfe;border-radius:18px;padding:18px;color:#1e3a8a;margin-top:22px}
    .final-cta{background:radial-gradient(circle at 10% 20%,rgba(22,182,160,.18),transparent 34%),linear-gradient(135deg,#062747 0%,#0756a3 100%);color:#fff;padding:64px 0}
    .final-cta h2{color:#fff}
    .final-cta p{color:rgba(255,255,255,.82);font-size:18px;margin:0}
    .cta-grid{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
    .cta-actions{display:grid;gap:10px;min-width:240px}
    .btn-white{background:#fff;color:var(--primary)}
    .btn-white:hover{background:#eef7ff}
   .proof-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 22px;
    }

    .proof-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: 0 8px 20px rgba(15,23,42,.04);
    }

    .proof-image {
      height: 160px;
      background: linear-gradient(135deg, #eff6ff, #ecfdf5);
      display: grid;
      place-items: center;
      color: var(--primary-dark);
      font-weight: 900;
      text-align: center;
      padding: 18px;
    }

    .proof-body {
      padding: 20px;
    }

    .proof-body p {
      margin: 0;
      color: var(--muted);
    }	
	 .cta-section {
      background:radial-gradient(circle at 10% 20%, rgba(16,185,129,.18), transparent 34%),linear-gradient(135deg, #081a3a 0%, #0b2e69 55%, #073a75 100%);
      color: #fff;
      padding: 74px 0;
    }

    .cta-box {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
    }

    .cta-box h2 { color: #fff; }
    .cta-box p {
      color: rgba(255,255,255,.82);
      font-size: 18px;
      margin: 0;
    }

    .cta-actions {
      display: grid;
      gap: 12px;
      min-width: 240px;
    }

    .cta-actions .btn-secondary {
      background: rgba(255,255,255,.12);
      border-color: rgba(255,255,255,.28);
      color: #fff;
    }

    .tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .final-cta .cta-box .tag {
      padding: 7px 11px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,.26);
      color: #fff;
      background: rgba(255,255,255,.08);
      font-size: 14px;
      font-weight: 750;
    }	
     .update-note{font-size:14px;color:var(--muted);border-top:1px solid var(--border);padding-top:18px;margin-top:28px}
	
	  .update-note {
      background: #f8fafc;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 22px;
      color: var(--muted);
    }

    
    .topic-guide-card {
      display: grid;
      gap: 12px;
      height: 100%;
    }

    .topic-guide-card .topic-badge {
      display: inline-flex;
      width: fit-content;
      padding: 5px 10px;
      border-radius: 999px;
      background: rgba(16,185,129,.10);
      color: #047857;
      font-size: 13px;
      font-weight: 900;
    }

    .topic-guide-card .read-more {
      font-weight: 900;
      margin-top: 4px;
    }
	
    footer .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
    @media(max-width:1100px){.nav-links{gap:10px;font-size:14px}.nav-search{width:170px}.nav-search button{display:none}}
    @media(max-width:980px){.nav-links{display:none}.hero-grid,.grid-2,.grid-3,.grid-4,.summary-strip,.cta-grid{grid-template-columns:1fr}.sticky-classbar{display:none}.nav-search{width:min(260px,42vw)}}
    @media(max-width:640px){.container{width:min(100% - 24px,var(--max))}.nav-search{display:none}.header-cta{display:none}.sticky-classbar .container{display:block}.sticky-actions{margin-top:8px}.section{padding:48px 0}.hero{padding:46px 0 34px}}