/* 微课堂 前台样式：PC 参考 fylesson 模板，移动端子适应 + 底部 tabbar */
:root{
  color-scheme:light;
  --brand:#e9511b;
  --brand-hover:#d14410;
  --dark:#32333b;
  --line:#eee;
  --text:#333;
  --muted:#888;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:#f7f8fa;color:var(--text);
  font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-text-size-adjust:100%;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600}
input,select,textarea,button{font-family:inherit;font-size:inherit}
.clear{clear:both}

.w-main{width:1200px;max-width:100%;margin:0 auto;padding:0 15px}
.container{width:1200px;max-width:100%;margin:0 auto;padding:0 15px}

/* ============ PC 顶部通告栏 ============ */
.w-top{background:#fff;border-bottom:1px solid #f0f0f0;font-size:12px;color:#666;display:none}
@media(min-width:992px){.w-top{display:block}}
.w-top .w-main{display:flex;align-items:center;justify-content:space-between;height:45px}
.w-top a{color:#666}
.w-top a:hover{color:var(--brand)}
.w-top .notice{color:var(--brand);max-width:560px;overflow:hidden;height:45px;line-height:45px;white-space:nowrap}
.w-top .notice span{display:inline-block;padding-left:100%;animation:marquee 18s linear infinite}
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(-100%)}}

/* ============ 头部：LOGO + 搜索 + 热词 ============ */
.w-head{background:#fff;padding:22px 0}
.w-head .w-main{display:flex;align-items:center;gap:36px}
.w-head .logo img{max-height:54px}
.w-head .src-wrap{flex:0 0 540px;max-width:100%}
.w-head .src{display:flex}
.w-head .src select{border:2px solid var(--brand);border-right:0;height:39px;padding:0 8px;background:#fff;color:#333;border-radius:4px 0 0 4px;outline:none}
.w-head .src input{flex:1;min-width:0;height:39px;border:2px solid var(--brand);border-left:0;padding:0 12px;outline:none}
.w-head .src button{width:92px;height:39px;border:0;background:var(--brand);color:#fff;font-size:16px;cursor:pointer;border-radius:0 4px 4px 0}
.w-head .src button:hover{background:var(--brand-hover)}
.w-hot{margin-top:8px;font-size:12px;color:#8b8b8b}
.w-hot a{color:#8b8b8b;margin-right:14px}
.w-hot a:hover{color:var(--brand)}
.w-head .head-qr img{width:120px;height:120px;object-fit:cover}
/* 手机端：隐藏 PC 搜索行，仅保留居中的 LOGO */
@media(max-width:991px){
  .w-head{padding:14px 0}
  .w-head .w-main{justify-content:center}
  .w-head .src-wrap{display:none}
}

/* ============ 主导航 + 多级分类菜单 ============ */
.w-nav{background:#fff;border-bottom:2px solid var(--brand);display:none}
@media(min-width:992px){.w-nav{display:block}}
.w-nav .w-main{display:flex;align-items:center;height:60px}
.w-all{position:relative;width:230px;height:60px;line-height:60px;text-align:center;background:var(--brand);color:#fff;font-size:16px;cursor:pointer}
.w-menu{display:none;position:absolute;top:60px;left:0;width:230px;background:#fff;border:1px solid var(--line);box-shadow:0 6px 18px rgba(0,0,0,.08);z-index:60}
.w-all:hover .w-menu{display:block}
.w-menu .g{padding:10px 14px;border-bottom:1px solid #f7f7f7}
.w-menu .g:hover{background:#fff8f4}
.w-menu .g b{display:block;font-size:14px;color:#333;margin-bottom:4px}
.w-menu .g b:hover,.w-menu .g a:hover{color:var(--brand)}
.w-menu .g a{display:inline-block;font-size:12px;color:#777;margin:0 8px 0 0;line-height:22px}
.w-navlinks{display:flex;margin-left:18px}
.w-navlinks a{display:block;height:60px;line-height:60px;padding:0 18px;color:#333;font-size:15px}
.w-navlinks a:hover,.w-navlinks a.cur{color:var(--brand)}

/* ============ 手机端搜索胶囊 ============ */
.msearch{display:none;background:#fff;padding:8px 12px}
@media(max-width:991px){.msearch{display:flex;align-items:center;gap:8px}}
.msearch .capsule{flex:1;display:flex;align-items:center;background:#f4f4f4;border-radius:50px;height:36px;padding:0 14px}
.msearch .capsule input{flex:1;border:0;background:transparent;outline:none;font-size:13px}
.msearch .capsule i{color:#aaa;font-style:normal}

/* ============ 轮播 ============ */
.w-slider{position:relative;overflow:hidden;margin-top:14px}
@media(max-width:991px){.w-slider{margin:10px 12px;border-radius:10px}}
.w-slider .slides{position:relative;height:340px}
@media(max-width:991px){.w-slider .slides{height:150px}}
.w-slider .slide{position:absolute;inset:0;opacity:0;transition:opacity .6s ease}
.w-slider .slide.on{opacity:1}
.w-slider .slide img{width:100%;height:100%;object-fit:cover}
.w-slider .dots{position:absolute;bottom:12px;left:0;right:0;display:flex;justify-content:center;gap:8px}
.w-slider .dots i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.65);cursor:pointer;transition:.3s}
.w-slider .dots i.on{background:var(--brand);width:20px;border-radius:5px}

/* ============ 分类图标九宫格 ============ */
.cats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px 6px;background:#fff;border-radius:10px;padding:14px 6px}
@media(min-width:992px){.cats-grid{grid-template-columns:repeat(10,1fr);gap:18px}}
.cats-grid a{text-align:center}
.cats-grid img{width:46px;height:46px;border-radius:50%;object-fit:cover;background:#f2f2f2;margin:0 auto}
@media(min-width:992px){.cats-grid img{width:54px;height:54px}}
.cats-grid p{margin:6px 0 0;font-size:12px;color:#555;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cats-grid a:hover p{color:var(--brand)}

/* ============ 区块标题 ============ */
.sec{margin-top:26px}
.sec-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.sec-hd h2{position:relative;padding-left:12px;font-size:20px;color:#333}
.sec-hd h2::before{content:'';position:absolute;left:0;top:3px;bottom:3px;width:4px;background:var(--brand);border-radius:2px}
.sec-hd a.more{font-size:13px;color:#999}
.sec-hd a.more:hover{color:var(--brand)}

/* ============ 折扣条 ============ */
.promo{display:flex;align-items:center;gap:14px;background:linear-gradient(90deg,#fff3ec,#ffe9dd);border:1px solid #ffd9c2;border-radius:10px;padding:12px 16px;margin-top:14px}
.promo b{color:var(--brand);font-size:16px}
.promo span{color:#a05a30;font-size:13px}

/* ============ 课程卡片 ============ */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:16px}
@media(max-width:768px){.grid{grid-template-columns:repeat(2,1fr);gap:10px}}
/* 大屏手机/小平板(480-768px)放宽为3列；普通手机(≤479px)仍2列，按屏幕大小自适应 */
@media(max-width:768px) and (min-width:480px){.grid{grid-template-columns:repeat(3,1fr);gap:12px}}
.course{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.course:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,.09);border-color:transparent}
.course .cover{width:100%;height:150px;object-fit:cover;background:#f2f4fb;flex:none}
@media(max-width:768px){.course .cover{height:96px}}
.course .body{flex:1;display:flex;flex-direction:column;min-width:0;padding:10px 12px 14px}
.course .title{font-size:14px;color:#333;line-height:1.45;height:40px;overflow:hidden}
@media(max-width:768px){.course .title{font-size:13px;height:38px}}
.course .meta{display:flex;align-items:center;gap:8px;margin-top:auto;padding-top:8px}
.course .price{color:var(--brand);font-weight:700;font-size:16px}
.course .price.free{color:#2f9e44}
.course .vip-free{background:linear-gradient(90deg,#ffb457,#ff7a18);color:#fff;font-size:11px;padding:2px 6px;border-radius:3px}
.course .muted{font-size:12px;color:#aaa;margin-left:auto}

/* ============ 资源榜单列表（无图，序号+标题+右侧数据）============ */
.rk-list{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.rk-row{display:flex;align-items:center;gap:12px;padding:13px 16px;border-bottom:1px dashed #f2f2f2;transition:background .15s}
.rk-row:last-child{border-bottom:0}
.rk-row:hover{background:#fffaf6}
.rk-no{width:22px;height:22px;border-radius:5px;background:#f0f0f0;color:#999;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:none}
.rk-no.top{color:#fff;background:linear-gradient(135deg,#ff9a62,var(--brand))}
.rk-t{flex:1;min-width:0;font-size:14px;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rk-t:hover{color:var(--brand)}
.rk-meta{flex:none;display:flex;align-items:center;gap:10px;font-size:12px;color:#999}
.rk-row .price{color:var(--brand);font-weight:700;font-size:13px}
.rk-row .price.free{color:#2f9e44}
.rk-row .vip-free{background:linear-gradient(90deg,#ffb457,#ff7a18);color:#fff;font-size:11px;padding:2px 6px;border-radius:3px;margin-right:0}
.rk-dl{display:inline-flex;align-items:center;gap:4px;color:#999}
.rk-dl svg{flex:none}
@media(max-width:768px){.rk-row{padding:11px 12px;gap:10px}.rk-t{font-size:13px}.rk-meta{gap:8px}}
.cols-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:768px){.cols-2{grid-template-columns:1fr;gap:14px}}

/* ============ 资讯列表 ============ */
.news-list{background:#fff;border:1px solid var(--line);border-radius:8px}
.news-list li{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px dashed #f2f2f2}
.news-list li:last-child{border-bottom:0}
.news-list .thumb{width:60px;height:42px;object-fit:cover;border-radius:4px;flex:none;background:#f5f5f5}
.news-list .t{flex:1;min-width:0}
.news-list .t b{display:block;font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-list .t span{display:block;font-size:12px;color:#aaa;margin-top:3px}
.news-list time{flex:none;font-size:12px;color:#bbb}

/* ============ 通用卡片/表单/按钮（保留旧有用类） ============ */
.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px}
.section{margin-top:20px}
.hero{border-radius:8px;overflow:hidden;margin-top:14px}
.hero img{width:100%;height:260px;object-fit:cover}
.muted{color:var(--muted)}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:6px;padding:9px 18px;cursor:pointer;font-size:14px}
.btn:hover{background:var(--brand-hover)}
.btn.sm{padding:5px 12px;font-size:13px}
.btn.block{display:block;width:100%;text-align:center}
.btn.ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.input,.select{width:100%;border:1px solid #ddd;border-radius:6px;padding:9px 10px;outline:none;margin-bottom:10px}
.input:focus,.select:focus{border-color:var(--brand)}
.row{display:flex;flex-wrap:wrap;gap:10px}
.row>div{flex:1 1 240px}
.panel{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px;margin-bottom:14px}
.msg-box{text-align:center;padding:30px}
.stat{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.stat .box{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px;text-align:center}
.stat .num{font-size:22px;font-weight:700;color:var(--brand)}

/* ============ 页脚 ============ */
.foot{background:#fff;border-top:1px solid var(--line);margin-top:34px;padding:24px 0 0}
.foot-links{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;padding-bottom:14px}
.foot-links a{font-size:13px;color:#777}
.foot-links a:hover{color:var(--brand)}
.foot-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:18px 0;border-top:1px solid #f4f4f4}
@media(max-width:768px){.foot-cols{grid-template-columns:repeat(2,1fr);gap:14px}}
.foot-cols dt{font-size:14px;font-weight:600;margin-bottom:8px}
.foot-cols dd{margin:0 0 6px}
.foot-cols dd a{font-size:12px;color:#888}
.foot-cols dd a:hover{color:var(--brand)}
.foot-info{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding:18px 0;border-top:1px solid #f4f4f4}
.foot-info p{margin:3px 0;font-size:13px;color:#777}
.foot-qr{display:flex;gap:20px}
.foot-qr>div{text-align:center}
.foot-qr img{width:96px;height:96px;object-fit:cover;background:#f7f7f7;border:1px solid var(--line)}
.foot-qr span{display:block;font-size:12px;color:#999;margin-top:4px}
.copyright{background:var(--dark);color:#a9a9a9;font-size:12px;text-align:center;padding:16px 0;line-height:22px}
.copyright a{color:#a9a9a9}

/* ============ PC 右侧悬浮工具栏 ============ */
.side-bar{display:none}
@media(min-width:1250px){
  .side-bar{display:block;position:fixed;right:12px;top:38%;z-index:80}
}
.side-bar a{display:block;width:54px;height:54px;background:#fff;border:1px solid var(--line);border-radius:6px;margin-bottom:8px;
  text-align:center;color:#777;font-size:11px;line-height:1.25;padding-top:9px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.side-bar a i{display:block;font-style:normal;font-size:16px;margin-bottom:2px}
.side-bar a:hover{background:var(--brand);color:#fff}

/* ============ 移动端底部 tabbar ============ */
.tabbar{position:fixed;left:0;right:0;bottom:0;display:flex;background:#fff;border-top:1px solid var(--line);z-index:70;padding:4px 0}
.tabbar a{flex:1;text-align:center;font-size:11px;color:#999;padding:3px 0}
.tabbar a.active{color:var(--brand)}
@media(min-width:992px){.tabbar{display:none}}
.backtop{position:fixed;right:14px;bottom:78px;width:40px;height:40px;border-radius:50%;background:rgba(0,0,0,.35);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;z-index:50}
@media(min-width:992px){.backtop{bottom:30px}}

/* ============ 个人中心 ============ */
.member-card{background:linear-gradient(135deg,#ffffff,#fff6f0);border:1px solid #ffe2d2;border-radius:14px;padding:18px;box-shadow:0 6px 20px rgba(233,81,27,.06)}
.member-top{display:flex;align-items:center;gap:14px}
.member-avatar{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--brand),#ff7a18);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;flex:none}
.member-id{flex:1;min-width:0}
.member-name{font-size:18px;font-weight:700;color:#222;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.member-vip{display:inline-block;margin-top:5px;font-size:12px;color:#b06a3a;background:#fff0e6;border:1px solid #ffd9c2;padding:1px 10px;border-radius:20px}
.member-vip.on{color:#fff;background:linear-gradient(90deg,#ffb457,#ff7a18);border-color:transparent}
.member-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:16px}
.member-stats .ms{text-align:center;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 4px}
.member-stats .ms b{display:block;font-size:18px;color:var(--brand);line-height:1.25;font-weight:700}
.member-stats .ms span{font-size:12px;color:#999;margin-top:2px;display:block}

.member-study{display:flex;gap:18px;flex-wrap:wrap}
.member-sub{flex:1 1 280px;min-width:0}
.member-sub h3{font-size:15px;margin:0 0 8px;color:#333}
.member-ct{display:flex;flex-direction:column;gap:3px;min-width:0}
.member-ct a{color:#333;font-weight:500;word-break:break-word}
.member-ct a:hover{color:var(--brand)}
.member-dur{color:var(--brand);font-weight:600;font-size:14px;flex:none}

.member-actions{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
.member-actions .btn{text-align:center}
.btn.danger{background:#fff;color:#f5222d;border:1px solid #ffccc7}
.btn.danger:hover{background:#fff1f0}
.member-paid{color:#52c41a;font-size:13px}
.member-unpaid{color:#f5222d;font-size:13px}

/* 移动端（H5）优化：资料卡与统计更紧凑、学习区单列、按钮两列 */
@media(max-width:991px){
  .member-card{padding:16px}
  .member-top{gap:12px}
  .member-avatar{width:50px;height:50px;font-size:20px}
  .member-name{font-size:17px}
  .member-stats{grid-template-columns:repeat(3,1fr);gap:8px}
  .member-stats .ms{padding:9px 2px}
  .member-stats .ms b{font-size:16px}
  .member-study{flex-direction:column;gap:14px}
}
@media(max-width:768px){
  .member-actions{grid-template-columns:repeat(2,1fr);gap:9px}
  .member-actions .btn{padding:10px 8px;font-size:13px}
  .section h2{font-size:17px}
}
@media(max-width:360px){
  .member-stats{grid-template-columns:repeat(2,1fr)}
}

/* ============ 内页通用组件（详情页/列表/分页/登录/按钮）============ */
.auth{width:420px;max-width:100%;margin:34px auto;padding:0 15px}
.auth h1{font-size:22px;margin-bottom:14px}
.detail-cover{width:100%;height:300px;object-fit:cover;border-radius:8px;background:#f2f4fb}
@media(max-width:768px){.detail-cover{height:180px}}
.btn-ghost{display:inline-block;background:#fff;color:var(--brand);border:1px solid var(--brand);border-radius:6px;padding:8px 16px;font-size:14px}
.btn-ghost:hover{background:#fff8f4}
.price{color:var(--brand);font-weight:700}
.vip-free{display:inline-block;background:linear-gradient(90deg,#ffb457,#ff7a18);color:#fff;font-size:11px;padding:2px 6px;border-radius:3px}
.tag{display:inline-block;background:#f4f4f4;color:#888;font-size:12px;padding:2px 8px;border-radius:3px;margin-right:6px}
.empty{padding:44px 10px;text-align:center;color:#bbb;background:#fff;border:1px dashed var(--line);border-radius:8px}
.list{display:block}
.item{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#fff;
  border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin-bottom:10px}
.item:hover{border-color:var(--brand)}
.pager{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:20px 0}
.pager a{padding:6px 12px;border:1px solid var(--line);border-radius:4px;background:#fff;color:#666;font-size:13px}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.searchbar{margin-bottom:14px}
.searchbar .input,.searchbar .select{margin-bottom:0}

/* ============ 手机端防遮挡 / 防错位补充 ============ */
@media(max-width:991px){
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
  .tabbar{padding-bottom:calc(4px + env(safe-area-inset-bottom))}
  .promo{flex-wrap:wrap;gap:8px}
  .promo .btn{margin-left:0!important}
  .sec{margin-top:18px}
  .sec-hd h2{font-size:17px}
  .foot{margin-top:22px}
  .foot-info{flex-direction:column;align-items:flex-start}
  .foot-qr{gap:14px}
  .foot-qr img{width:84px;height:84px}
  .news-list li{gap:8px;padding:10px 12px}
  .course .meta{flex-wrap:wrap}
  /* 页脚链接：放大点击热区，避免小字点不中 */
  .foot-cols dd{margin:0}
  .foot-cols dd a{display:block;padding:7px 0;font-size:13px}
  .foot-links a{padding:6px 0}
  .foot-links{gap:8px 14px}
}

/* ============ 图文章节：富文本原样呈现容器 ============ */
/* 说明：刻意不重置行内元素的盒模型/尺寸，避免改动粘贴内容的原始排版 */
.wk-rich{line-height:1.8;font-size:15px;color:#333;overflow-x:auto;word-wrap:break-word;overflow-wrap:break-word}
.wk-rich img{max-width:100%;height:auto}
.wk-rich pre,.wk-rich code{max-width:100%;overflow-x:auto;white-space:pre-wrap;word-break:break-word}
.wk-rich hr{border:0;border-top:1px solid var(--line)}

/* ============ 知识图集 详情页 ============ */
.atlas-detail{display:flex;gap:18px;align-items:flex-start}
.atlas-main{flex:1 1 auto;min-width:0}
.atlas-side{flex:0 0 280px}
@media(max-width:768px){.atlas-detail{flex-direction:column}.atlas-side{flex-basis:auto;width:100%}}
.atlas-head{padding:2px 2px 12px;border-bottom:1px solid var(--line);margin-bottom:14px}
.atlas-title{font-size:22px;margin:0 0 8px;line-height:1.4}
.atlas-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:#8a94a6}
.atlas-meta .dot{opacity:.55}
.atlas-slider{position:relative;width:100%;max-width:860px;margin:0 auto;background:#101418;border-radius:12px;overflow:hidden;box-shadow:0 6px 24px rgba(15,30,60,.14)}
.atlas-slides{display:flex;height:100%;transition:transform .45s ease}
.atlas-slide{flex:0 0 100%;height:100%}
.atlas-slide img{width:100%;height:100%;object-fit:contain;display:block;background:#101418;user-select:none;-webkit-user-drag:none}
.atlas-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.16);color:#fff;font-size:26px;line-height:1;cursor:pointer;backdrop-filter:blur(4px);transition:background .2s}
.atlas-nav:hover{background:rgba(255,255,255,.34)}
.atlas-prev{left:12px}.atlas-next{right:12px}
.atlas-count{position:absolute;top:12px;right:12px;padding:4px 12px;border-radius:999px;background:rgba(0,0,0,.55);color:#fff;font-size:12px;letter-spacing:1px}
.atlas-dots{position:absolute;bottom:12px;left:0;right:0;text-align:center}
.atlas-dot{display:inline-block;width:8px;height:8px;margin:0 4px;border-radius:999px;background:rgba(255,255,255,.45);cursor:pointer;transition:.25s}
.atlas-dot.on{background:#fff;width:22px}
.atlas-intro{line-height:1.8}
.atlas-blk h3{font-size:15px;margin:0 0 12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.atlas-price{font-size:16px;display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.atlas-dl{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:16px 18px}
.atlas-dl-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
@media(max-width:768px){
  .atlas-title{font-size:18px}
  .atlas-slider{border-radius:10px;box-shadow:none}
  .atlas-nav{width:34px;height:34px;font-size:22px}
  .atlas-count{font-size:11px;padding:3px 10px}
  .atlas-dl{flex-direction:column;align-items:stretch}
}

/* ============ 详情页操作按钮区（购买/收藏/分享/卡密兑换） ============ */
.buy-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px}
.buy-actions .btn,.buy-actions .btn-ghost{margin:0}
@media(max-width:768px){
  .buy-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .buy-actions .btn,.buy-actions .btn-ghost{display:block;width:100%;text-align:center;height:46px;line-height:44px;padding:0 8px;font-size:15px;box-sizing:border-box}
  .buy-actions>.btn:not(.btn-ghost),.buy-actions .span2,.buy-actions>form,.buy-actions>.muted{grid-column:1/-1}
  .buy-actions>form{margin:0}
}

/* ============ 资源详情：文件清单（每个文件一行） ============ */
.rf-list{flex-basis:100%;margin-top:6px}
.rf-hd{font-weight:600;font-size:15px;margin:2px 0 10px}
.rf-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border:1px solid #eef0f4;border-radius:10px;background:#fafbfd;margin-bottom:8px;transition:border-color .15s,background .15s}
.rf-item:hover{border-color:#c9dcff;background:#f5f9ff}
.rf-ico{flex:none;min-width:44px;height:32px;padding:0 8px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;letter-spacing:.5px;color:#fff;background:linear-gradient(135deg,#5b8def,#2f6fed);box-sizing:border-box}
.rf-ico.pan{background:linear-gradient(135deg,#3ecf9a,#1f9d70)}
.rf-info{flex:1;min-width:0}
.rf-name{display:block;font-size:14px;color:#1f2d3d;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rf-meta{display:block;font-size:12px;color:#98a2b3;margin-top:2px}
.rf-ops{flex:none;display:flex;align-items:center;gap:8px}
.rf-code{cursor:pointer;font-size:12px;color:#2f6fed;background:#f0f5ff;border:1px dashed #b9d0ff;border-radius:6px;padding:5px 9px;line-height:1}
.rf-code:hover{background:#e4eeff}
.rf-code:active{background:#d5e5ff}
@media(max-width:768px){
  .buy-actions>.rf-list{grid-column:1/-1}
  .rf-item{padding:10px 12px}
}

/* ============ 内容详情页：自动 SEO 标签 ============ */
.seo-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:10px 0 2px}
.seo-tags-label{font-size:13px;color:#98a2b3;flex:none}
.seo-tag{display:inline-block;padding:4px 10px;font-size:12px;line-height:1.4;color:#2f6fed;background:#f0f5ff;border:1px solid #e0e9ff;border-radius:999px;text-decoration:none;transition:.15s}
.seo-tag:hover{background:#2f6fed;color:#fff;border-color:#2f6fed}

/* ============ 统一细节优化（平滑滚动 / 焦点态 / 按钮反馈 / 登录卡片） ============ */
html{scroll-behavior:smooth}
::selection{background:var(--brand);color:#fff}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid rgba(233,81,27,.35);outline-offset:2px}
.btn{transition:transform .12s,background .12s,box-shadow .12s}
.btn:active{transform:translateY(1px)}
.card,.panel{box-shadow:0 1px 3px rgba(16,24,40,.05)}
.input,.select{transition:border-color .15s,box-shadow .15s}
.input:focus,.select:focus{box-shadow:0 0 0 3px rgba(233,81,27,.12)}

.login-card{border-top:3px solid var(--brand);box-shadow:0 8px 30px rgba(233,81,27,.08)}
.login-card h1{color:var(--brand);letter-spacing:1px}