/* 兵团中青旅研学 - 前台样式 */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --orange:#ff6a13; --orange-d:#e55a0a; --orange-l:#fff3ea;
  --blue:#0a7fc4; --blue-d:#086a9e; --blue-l:#e8f4fb;
  --ink:#22293a; --sub:#6b7385; --line:#e8eaf0; --bg:#f7f8fb; --card:#fff;
  --red:#c8102e;
}
body{font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;color:var(--ink);background:#fff;line-height:1.6}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1200px,92%);margin:0 auto}
/* 顶栏 */
.topbar{background:linear-gradient(90deg,var(--blue-d),var(--blue));color:#fff;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar a{color:#ffd9c2}
.topbar .tel{font-weight:600;letter-spacing:.5px}
/* 导航 */
header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 2px 12px rgba(20,40,80,.08)}
.nav{display:flex;align-items:center;height:70px;gap:36px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--orange),#ff9a4d);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;letter-spacing:1px;box-shadow:0 4px 12px rgba(255,106,19,.35)}
.logo-name{font-size:20px;font-weight:800}
.logo-name small{display:block;font-size:11px;font-weight:500;color:var(--sub);letter-spacing:2.5px}
.menu{display:flex;gap:6px;list-style:none;flex:1;justify-content:flex-end}
.menu>li{position:relative}
.menu>li>a{display:block;padding:10px 16px;font-size:15.5px;font-weight:600;border-radius:8px;transition:.2s}
.menu>li>a:hover,.menu>li>a.on{color:var(--orange);background:var(--orange-l)}
.dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#fff;border-radius:12px;box-shadow:0 12px 40px rgba(20,40,80,.16);padding:10px;width:440px;display:none;grid-template-columns:1fr 1fr;gap:2px;max-height:min(72vh,640px);overflow:auto}
.menu>li:hover .dropdown{display:grid}
.dropdown a{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:8px;font-size:14px}
.dropdown a:hover{background:var(--orange-l);color:var(--orange)}
.dropdown .dot{width:8px;height:8px;border-radius:3px;flex:none}
.nav-cta{background:linear-gradient(135deg,var(--orange),#ff9440);color:#fff;padding:10px 20px;border-radius:999px;font-weight:700;font-size:14.5px;white-space:nowrap;box-shadow:0 4px 14px rgba(255,106,19,.4)}
/* hero */
.hero{position:relative;min-height:520px;display:flex;align-items:center;background:#123 url('assets/img/hero.jpg') center/cover no-repeat}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,25,50,.72),rgba(10,25,50,.25) 60%,rgba(10,25,50,.05))}
.hero .container{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);color:#fff;font-size:13px;padding:6px 14px;border-radius:999px;backdrop-filter:blur(4px)}
.hero h1{color:#fff;font-size:44px;line-height:1.28;margin:18px 0 10px;font-weight:800;text-shadow:0 2px 20px rgba(0,0,0,.35)}
.hero h1 em{font-style:normal;color:#ffb27a}
.hero p{color:rgba(255,255,255,.88);font-size:17px;max-width:560px}
.hero-btns{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:999px;font-weight:700;font-size:16px;transition:.2s;border:none;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--orange),#ff9440);color:#fff;box-shadow:0 8px 24px rgba(255,106,19,.45)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.6);backdrop-filter:blur(4px)}
.hero-stats{position:absolute;right:0;bottom:0;left:0;background:linear-gradient(90deg,rgba(255,255,255,.97),rgba(255,255,255,.9));backdrop-filter:blur(8px);border-top:1px solid rgba(255,255,255,.6)}
.hero-stats .container{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:18px 0}
.hero-stats b{font-size:30px;color:var(--orange);font-weight:800}
.hero-stats b i{font-style:normal;font-size:15px}
.hero-stats span{display:block;font-size:13.5px;color:var(--sub)}
/* 区块通用 */
section{padding:72px 0}
.sec-head{text-align:center;margin-bottom:44px}
.sec-kicker{color:var(--blue);font-weight:700;font-size:14px;letter-spacing:4px}
.sec-head h2{font-size:32px;font-weight:800;margin:8px 0 10px}
.sec-head h2 b{color:var(--orange)}
.sec-head p{color:var(--sub);font-size:15px}
/* 课程体系 */
.sys{background:var(--bg)}
.sys-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.sys-card{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 4px 18px rgba(20,40,80,.07);transition:.25s;display:block;position:relative}
.sys-card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(20,40,80,.14)}
.sys-card .ph{height:230px;position:relative;overflow:hidden}
.sys-card .ph img{width:100%;height:100%;object-fit:cover;transition:.4s}
.sys-card:hover .ph img{transform:scale(1.06)}
.sys-card .ph::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(10,20,40,.55))}
.sys-card .tag-en{position:absolute;top:14px;left:14px;z-index:2;background:rgba(255,255,255,.92);color:#333;font-size:11px;font-weight:700;letter-spacing:1.5px;padding:4px 10px;border-radius:6px}
.sys-card .tag-n{position:absolute;bottom:14px;left:18px;z-index:2;color:#fff;font-size:23px;font-weight:800;display:flex;align-items:center;gap:9px}
.sys-card .tag-n .ic{width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:16px}
.sys-body{padding:20px 24px 22px}
.sys-body p{font-size:14px;color:var(--sub);min-height:46px}
.sys-meta{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:13px;color:var(--sub)}
.sys-meta b{color:var(--orange)}
.sys-cta{background:#102a43;display:flex;align-items:center}
.sys-cta .sys-body{width:100%;padding:28px 28px 30px}
/* 精选课程 */
.hot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.course-card{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 4px 18px rgba(20,40,80,.07);transition:.25s;display:flex;flex-direction:column}
.course-card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(20,40,80,.14)}
.course-card .ph{position:relative;height:200px;overflow:hidden}
.course-card .ph img{width:100%;height:100%;object-fit:cover;transition:.4s}
.course-card:hover .ph img{transform:scale(1.06)}
.course-card .hot{position:absolute;top:12px;left:12px;background:var(--red);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:6px}
.course-card .cat-chip{position:absolute;bottom:12px;left:12px;background:rgba(255,255,255,.94);font-size:12px;font-weight:700;padding:3px 10px;border-radius:6px}
.course-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.course-body h3{font-size:17.5px;font-weight:800;margin-bottom:6px}
.course-body .tl{color:var(--sub);font-size:13.5px;min-height:44px}
.course-tags{display:flex;gap:8px;margin:10px 0 12px;flex-wrap:wrap}
.course-tags span{background:var(--blue-l);color:var(--blue-d);font-size:12px;padding:3px 10px;border-radius:6px;font-weight:600}
.course-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;border-top:1px dashed var(--line);padding-top:14px}
.course-foot .price{color:var(--orange);font-weight:800;font-size:20px}
.course-foot .price i{font-style:normal;font-size:12px;color:var(--sub);font-weight:500}
.course-foot .btn-sm{background:var(--orange);color:#fff;font-size:13px;font-weight:700;padding:8px 18px;border-radius:999px;border:none;cursor:pointer}
.course-foot .btn-sm:hover{background:var(--orange-d)}
/* 基地 */
.bases{background:linear-gradient(180deg,#f7f8fb,#eef4fa)}
.base-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.base-card{background:#fff;border-radius:16px;padding:24px 20px;box-shadow:0 4px 16px rgba(20,40,80,.06);border-top:4px solid var(--blue);transition:.25s}
.base-card:hover{transform:translateY(-5px)}
.base-card h4{font-size:16.5px;font-weight:800;margin-bottom:4px}
.base-card .bp{color:var(--blue);font-size:13px;font-weight:600;margin-bottom:10px}
.base-card p{color:var(--sub);font-size:13.5px}
/* 流程 */
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step}
.flow-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 18px;text-align:center;position:relative}
.flow-card .n{width:46px;height:46px;margin:0 auto 12px;border-radius:50%;background:var(--orange-l);color:var(--orange);font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;position:relative;z-index:2}
.flow-card::after{content:'';position:absolute;top:48px;left:calc(50% + 34px);width:calc(100% - 68px);border-top:2px dashed #ffceaa}
.flow-card:last-child::after{display:none}
.flow-card h4{font-size:16px;font-weight:800;margin-bottom:6px}
.flow-card p{font-size:12.8px;color:var(--sub)}
/* 安全 */
.safe-band{background:linear-gradient(90deg,#0d2f52,#0a7fc4);border-radius:20px;padding:34px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:26px;color:#fff}
.safe-item{display:flex;gap:14px;align-items:flex-start}
.safe-item .ic{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;font-size:20px;flex:none}
.safe-item b{display:block;font-size:16px;margin-bottom:3px}
.safe-item span{font-size:12.8px;color:rgba(255,255,255,.75)}
/* 资讯 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{background:#fff;border-radius:16px;padding:24px;border:1px solid var(--line);transition:.25s}
.news-card:hover{border-color:var(--orange);box-shadow:0 10px 28px rgba(255,106,19,.12)}
.news-card .nd{color:var(--sub);font-size:13px;display:flex;justify-content:space-between;margin-bottom:10px}
.news-card .nd b{color:var(--blue);font-weight:600}
.news-card h4{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:10px}
.news-card p{font-size:13.5px;color:var(--sub)}
/* FAQ */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:.2s}
.faq-item[open]{border-color:var(--orange);box-shadow:0 8px 24px rgba(255,106,19,.1)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 22px;font-size:15.5px;font-weight:700;display:flex;align-items:center;gap:10px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:'Q';color:var(--orange);font-weight:800;flex:none}
.faq-item summary::after{content:'+';margin-left:auto;color:var(--sub);font-size:18px;transition:.2s}
.faq-item[open] summary::after{content:'−';color:var(--orange)}
.faq-item p{padding:0 22px 18px 36px;color:var(--sub);font-size:14px;line-height:1.8}
/* CTA */
.cta{background:linear-gradient(120deg,var(--orange),#ff9440);border-radius:22px;padding:44px 48px;display:flex;justify-content:space-between;align-items:center;color:#fff;flex-wrap:wrap;gap:20px}
.cta h3{font-size:26px;font-weight:800;margin-bottom:6px}
.cta p{color:rgba(255,255,255,.9)}
.cta .btn{background:#fff;color:var(--orange);font-size:17px}
/* footer */
footer{background:#101b2d;color:#98a3b5;margin-top:72px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding:52px 0 40px}
.foot-top h5{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.foot-top p,.foot-top li{font-size:13.5px;line-height:2.1;list-style:none}
.foot-top .fbrand{display:flex;gap:12px;align-items:center;margin-bottom:16px}
.foot-top .fbrand .logo-mark{width:42px;height:42px;font-size:13px}
.foot-top .fbrand b{color:#fff;font-size:17px}
.foot-top li a:hover{color:#ff9a4d}
.foot-cats{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;text-align:center;font-size:12.5px;line-height:2}
/* 分类页 */
.page-banner{position:relative;height:300px;display:flex;align-items:center;background:#223 center/cover}
.page-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,25,50,.75),rgba(10,25,50,.3))}
.page-banner .container{position:relative;z-index:2}
.page-banner h1{color:#fff;font-size:34px;font-weight:800}
.page-banner .sub{color:rgba(255,255,255,.85);margin-top:8px;max-width:640px}
.crumb{background:#fff;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--sub);padding:14px 0}
.crumb a{color:var(--sub)}
.crumb a:hover{color:var(--orange)}
.crumb b{color:var(--orange)}
.cat-intro{display:flex;gap:24px;background:#fff;border-radius:18px;padding:26px;box-shadow:0 6px 20px rgba(20,40,80,.07);margin-top:-52px;position:relative;z-index:3}
.cat-intro .cic{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;flex:none}
.cat-intro h3{font-size:19px;font-weight:800;margin-bottom:4px}
.cat-intro p{color:var(--sub);font-size:14px}
.course-row{background:#fff;border-radius:20px;box-shadow:0 6px 22px rgba(20,40,80,.08);overflow:hidden;display:grid;grid-template-columns:400px 1fr}
.course-row+.course-row{margin-top:26px}
.course-row .ph{position:relative;min-height:260px}
.course-row .ph img{width:100%;height:100%;object-fit:cover}
.course-row .ph .days{position:absolute;top:14px;right:14px;background:rgba(16,27,45,.75);color:#fff;font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:8px;backdrop-filter:blur(3px)}
.course-row .info{padding:26px 30px;display:flex;flex-direction:column}
.course-row h3{font-size:21px;font-weight:800}
.course-row .tl{color:var(--blue-d);font-weight:600;font-size:14.5px;margin:6px 0 10px}
.course-row .desc{color:var(--sub);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.course-row .course-tags{margin:12px 0}
.course-row .course-foot{border:none;padding-top:14px}
.other-cats{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.oc-chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 18px;font-size:13.5px;font-weight:600;color:var(--sub)}
.oc-chip:hover,.oc-chip.on{border-color:var(--orange);color:var(--orange);background:var(--orange-l)}
/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(10,18,34,.6);z-index:200;display:none;align-items:flex-start;justify-content:center;overflow:auto;padding:40px 16px;backdrop-filter:blur(3px)}
.modal-mask.open{display:flex}
.modal{background:#fff;border-radius:20px;width:min(860px,100%);overflow:hidden;animation:pop .25s}
@keyframes pop{from{transform:translateY(24px);opacity:0}to{transform:none;opacity:1}}
.modal-head{position:relative;height:240px;background-size:cover;background-position:center}
.modal-head::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,20,40,.15),rgba(10,20,40,.75))}
.modal-head .mh{position:absolute;bottom:18px;left:26px;right:26px;color:#fff;z-index:2}
.modal-head .mh h3{font-size:24px;font-weight:800}
.modal-head .mh .mcat{margin-top:6px;font-size:13px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.modal-close{position:absolute;top:14px;right:16px;z-index:3;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.9);border:none;font-size:18px;cursor:pointer;color:#333}
.modal-body{padding:26px 30px 30px;max-height:60vh;overflow:auto}
.modal-body h4{font-size:16px;font-weight:800;margin:20px 0 10px;display:flex;align-items:center;gap:8px}
.modal-body h4::before{content:'';width:4px;height:16px;border-radius:2px;background:var(--orange)}
.modal-body p{color:#444;font-size:14.2px}
.obj-list{display:grid;gap:8px;margin-top:4px}
.obj-list li{list-style:none;background:var(--blue-l);border-radius:10px;padding:10px 14px;font-size:13.8px;color:var(--blue-d);display:flex;gap:8px}
.sched{width:100%;border-collapse:collapse;font-size:13.6px;margin-top:4px}
.sched th{background:var(--orange-l);color:var(--orange-d);text-align:left;padding:9px 12px;font-weight:700}
.sched td{padding:9px 12px;border-bottom:1px solid var(--line);color:#444}
.sched td:first-child{color:var(--blue-d);font-weight:700;white-space:nowrap}
.fee-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fee-box{border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.fee-box b{display:block;font-size:13.5px;margin-bottom:8px}
.fee-box.inc b{color:var(--blue-d)}
.fee-box.exc b{color:var(--sub)}
.fee-box li{list-style:none;font-size:13px;color:var(--sub);padding:2px 0}
.modal-foot{display:flex;justify-content:space-between;align-items:center;background:var(--bg);padding:18px 30px;gap:14px;flex-wrap:wrap}
.modal-foot .price{color:var(--orange);font-size:26px;font-weight:800}
.modal-foot .price i{font-style:normal;font-size:13px;color:var(--sub);font-weight:500}
.btn-outline{border:1.5px solid var(--orange);color:var(--orange);background:#fff}
/* 报名表单 */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
.f-item label{display:block;font-size:13px;font-weight:600;color:var(--sub);margin-bottom:6px}
.f-item input,.f-item select,.f-item textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:14px;font-family:inherit;outline:none;transition:.2s}
.f-item input:focus,.f-item select:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,106,19,.12)}
.form-ok{display:none;text-align:center;padding:30px 10px}
.form-ok .ok-ic{width:64px;height:64px;border-radius:50%;background:#e8f8ee;color:#2e9e5b;font-size:30px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.form-ok h4{font-size:19px;margin-bottom:8px}
.form-ok p{color:var(--sub);font-size:14px}
/* 响应式 */
@media (max-width:1024px){
  .sys-grid,.hot-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(3,1fr)}
  .flow-card:nth-child(3)::after{display:none}
  .base-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .safe-band{grid-template-columns:repeat(2,1fr)}
  .foot-top{grid-template-columns:1fr 1fr}
  .course-row{grid-template-columns:1fr}
  .course-row .ph{min-height:220px}
  .hero h1{font-size:34px}
}
@media (max-width:640px){
  .menu,.topbar .tl-r{display:none}
  .burger{display:block}
  .nav{gap:12px;position:relative}
  .sys-grid,.hot-grid,.base-grid,.flow-grid,.safe-band,.form-grid,.fee-grid,.foot-top,.hero-stats .container,.news-grid{grid-template-columns:1fr}
  .flow-card::after{display:none}
  .hero{min-height:440px}
  .hero h1{font-size:27px}
  .cat-intro{margin-top:-30px;flex-direction:column}
  section{padding:48px 0}
  .hero-stats{position:static}
  .modal-head{height:180px}
  .modal-body{padding:20px}
  .cta{padding:30px 24px}
  .m-bar{display:flex}
  body{padding-bottom:62px}
}
/* 移动端汉堡菜单与底部快捷栏 */
.burger{display:none;border:none;background:none;font-size:22px;color:var(--ink);cursor:pointer;padding:6px 10px;margin-left:auto}
.m-panel{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 14px 32px rgba(20,40,80,.18);padding:10px 18px 20px;z-index:99;max-height:70vh;overflow:auto}
.m-panel.open{display:block}
.m-panel .m-link{display:block;padding:13px 2px;border-bottom:1px solid var(--line);font-weight:600;font-size:15px}
.m-panel .m-link:active{color:var(--orange)}
.m-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.m-cats a{background:var(--bg);border-radius:8px;padding:9px 4px;text-align:center;font-size:12.5px;color:var(--sub);font-weight:600}
.m-bar{display:none;position:fixed;bottom:0;left:0;right:0;background:#fff;box-shadow:0 -4px 18px rgba(20,40,80,.14);padding:9px 14px;padding-bottom:calc(9px + env(safe-area-inset-bottom));z-index:98;gap:10px}
.m-bar .btn{flex:1;justify-content:center;padding:11px 0;font-size:15px}
@media (max-width:640px){
  .burger{display:block}
  .m-bar{display:flex}
}