/* ===== sj2026 extra v3：首页填充 / 页脚动画 / 交互细节 ===== */
:root{
  --sj-p1:#6d5ef2; --sj-p2:#4f46e5; --sj-ac:#2dd4bf;
  --sj-ink:#23233d; --sj-mut:#7a7a96; --sj-line:#eceef6; --sj-soft:#f6f7fb;
}

/* 搜索框细节（对齐 rj：常驻内联、聚焦高亮） */
.topbar .input-group{transition:box-shadow .25s,border-color .25s}
.topbar .input-group:focus-within{box-shadow:0 0 0 4px rgba(109,94,242,.14)}
.topbar #sj_search_mid{appearance:none;-webkit-appearance:none;padding-right:26px;
  background-image:linear-gradient(45deg,transparent 50%,#6d5ef2 50%),linear-gradient(135deg,#6d5ef2 50%,transparent 50%);
  background-position:calc(100% - 15px) 50%,calc(100% - 10px) 50%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.topbar .btn-search{transition:filter .2s}
.topbar .btn-search:hover{filter:brightness(1.06)}
.topbar .btn-search .iconfont{margin-right:5px}

/* 纵向留白收紧 */
.bx-cats{margin-bottom:0}
.bx-main{margin-top:16px}
.bx-side{gap:14px}
.bx-sec{margin-top:26px}
.bx-vip{margin-top:26px}

/* 网格自适应：卡片不足时自动铺满，避免大片空列 */
.bx-grid{grid-template-columns:repeat(auto-fit,minmax(296px,1fr))}
.bx-grid.less4{grid-template-columns:repeat(2,minmax(0,1fr))}
.bx-grid.less4 .bx-card .cover{aspect-ratio:16/9}

/* 三步指引 */
.bx-guide{max-width:1400px;margin:26px auto 0;padding:0 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.bx-guide .step{position:relative;background:#fff;border-radius:16px;padding:20px 22px 18px;box-shadow:0 6px 20px rgba(40,40,90,.07);overflow:hidden}
.bx-guide .step::after{content:"";position:absolute;right:-34px;top:-34px;width:100px;height:100px;border-radius:50%;background:linear-gradient(135deg,rgba(109,94,242,.12),rgba(45,212,191,.12))}
.bx-guide .n{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--sj-p1),var(--sj-p2));color:#fff;font-weight:800;font-size:15px;margin-bottom:12px}
.bx-guide b{display:block;font-size:15px;color:var(--sj-ink);margin-bottom:6px}
.bx-guide p{margin:0;font-size:13px;line-height:1.7;color:var(--sj-mut)}
.bx-guide .step:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(109,94,242,.16);transition:.25s}

/* 热门标签 */
.bx-tags{max-width:1400px;margin:22px auto 0;padding:18px 22px;background:#fff;border-radius:16px;box-shadow:0 6px 20px rgba(40,40,90,.07);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.bx-tags .tt{display:flex;align-items:center;font-size:14px;font-weight:700;color:var(--sj-ink);margin-right:4px}
.bx-tags .tt em{width:4px;height:15px;border-radius:2px;margin-right:7px;background:linear-gradient(var(--sj-p1),var(--sj-ac))}
.bx-tags a{font-size:13px;color:#4a4a68;background:#f5f5fc;border-radius:999px;padding:7px 14px;transition:.2s}
.bx-tags a:hover{background:#efeaff;color:var(--sj-p2);transform:translateY(-2px)}

/* 教程文章三列 */
.bx-arts{max-width:1400px;margin:26px auto 0;padding:20px 22px;background:#fff;border-radius:18px;box-shadow:0 6px 20px rgba(40,40,90,.07)}
.bx-arts .ah{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.bx-arts .ah h2{display:flex;align-items:center;font-size:18px;font-weight:800;margin:0;color:var(--sj-ink)}
.bx-arts .ah h2 em{width:4px;height:17px;border-radius:2px;margin-right:9px;background:linear-gradient(var(--sj-p1),var(--sj-ac))}
.bx-arts .ah .stit{font-size:12px;color:#9a9ab4}
.bx-arts .ah .bx-more{margin-left:auto}
.bx-arts .ag{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.bx-arts .ait{display:block;padding:14px 16px;border-radius:12px;background:var(--sj-soft);transition:.22s}
.bx-arts .ait b{display:block;font-size:14px;font-weight:600;color:#2b2b45;line-height:1.55;margin-bottom:8px;height:44px;overflow:hidden}
.bx-arts .ait span{font-size:12px;color:#9a9ab4;display:flex;align-items:center;gap:6px}
.bx-arts .ait:hover{background:#efeaff;transform:translateY(-2px)}
.bx-arts .ait:hover b{color:var(--sj-p2)}

/* 常见问题 */
.bx-faq{max-width:1400px;margin:26px auto 0;padding:0 20px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.bx-faq .q{background:#fff;border-radius:14px;padding:16px 18px;box-shadow:0 6px 20px rgba(40,40,90,.06)}
.bx-faq .q b{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--sj-ink);margin-bottom:7px;line-height:1.6}
.bx-faq .q b i{color:var(--sj-p1);font-size:14px;margin-top:2px}
.bx-faq .q p{margin:0;font-size:13px;line-height:1.75;color:var(--sj-mut);padding-left:22px}

/* 页脚增强 */
.footer{position:relative;padding:38px 0 22px;background:linear-gradient(180deg,#fbfbfe,#fff 40%)}
.footer .wrap{text-align:left}
.ft-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px;padding-bottom:22px;border-bottom:1px solid var(--sj-line)}
.ft-brand .fb-logo{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.ft-brand .fb-logo img{max-height:40px;width:auto}
.ft-brand .fb-logo b{font-size:17px;color:var(--sj-ink)}
.ft-brand p{margin:0 0 12px;font-size:13px;line-height:1.8;color:var(--sj-mut);max-width:320px}
.ft-pills{display:flex;gap:8px;flex-wrap:wrap}
.ft-pills span{font-size:12px;color:#5b5b7a;background:#f3f2fc;border-radius:999px;padding:5px 11px}
.ft-pills span i{color:var(--sj-p1);margin-right:4px}
.ft-col h4{font-size:13px;font-weight:700;color:var(--sj-ink);margin:0 0 12px}
.ft-col a{display:block;font-size:13px;color:var(--sj-mut);line-height:2;transition:.18s}
.ft-col a:hover{color:var(--sj-p2);transform:translateX(3px)}
.ft-bot{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:16px}
.ft-bot .copy{font-size:12px;color:#9a9ab4;margin:0;line-height:1.8}
.ft-bot .copy a{color:#8a8aa6}
.ft-bot .flinks a{font-size:12px;color:#8a8aa6;margin:0 8px}

/* 回到顶部 */
#sj_top{position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;background:#fff;color:var(--sj-p2);
  box-shadow:0 8px 24px rgba(60,60,120,.18);display:flex;align-items:center;justify-content:center;font-size:18px;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;z-index:1500;cursor:pointer}
#sj_top.on{opacity:1;visibility:visible;transform:none}
#sj_top:hover{background:linear-gradient(135deg,var(--sj-p1),var(--sj-p2));color:#fff}

/* 滚动进场动画 */
@keyframes sjUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.sj-rv{animation:sjUp .55s cubic-bezier(.22,.61,.36,1) both}
.sj-rv.d1{animation-delay:.06s}.sj-rv.d2{animation-delay:.12s}.sj-rv.d3{animation-delay:.18s}
.sj-rv.sj-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .sj-rv{animation:none;opacity:1;transform:none}
  .bx-card:hover,.bx-cat:hover,.bx-guide .step:hover{transform:none}
}

@media (max-width:1200px){
  .bx-guide{grid-template-columns:1fr 1fr}
  .bx-faq{grid-template-columns:1fr}
  .ft-top{grid-template-columns:1fr 1fr}
}
@media (max-width:991.98px){
  .bx-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
  .bx-arts .ag{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .bx-guide{grid-template-columns:1fr}
  .bx-tags{padding:14px 16px}
  .bx-arts{padding:16px}
  .bx-arts .ag{grid-template-columns:1fr}
  .bx-grid,.bx-grid.less4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ft-top{grid-template-columns:1fr;gap:18px}
  .ft-bot{flex-direction:column;align-items:flex-start}
  #sj_top{right:14px;bottom:16px;width:40px;height:40px}
}

/* ===== sj2026 extra v4 追加：侧栏标签 / 登录页高度 / 页脚补充 ===== */
.bx-side-tags{display:flex;flex-wrap:wrap;gap:8px;padding:14px 16px 16px}
.bx-side-tags a{font-size:12.5px;color:#4a4a68;background:#f5f5fc;border-radius:999px;padding:7px 13px;transition:.18s}
.bx-side-tags a:hover{background:#efeaff;color:var(--sj-p2);transform:translateY(-2px)}
.bx-panel{background:#fff;border-radius:16px;box-shadow:0 6px 20px rgba(40,40,90,.07);overflow:hidden}
.sj-login-page{background:radial-gradient(1100px 480px at 12% -12%,#eae6ff 0%,#f6f7fb 64%);min-height:62vh;padding-bottom:26px}
.footer .ft-tj{margin-top:10px;text-align:center}
.footer .ft-tj:empty{display:none}
.footer .ft-bot .flinks{text-align:right}
@media (max-width:640px){
  .footer .ft-bot .flinks{text-align:left}
  .bx-side-tags{padding:12px 14px 14px}
}

/* ===== v5：顶部搜索按钮尺寸对齐搜索条 ===== */
.topbar .search .btn-search{width:auto!important;min-width:96px;height:46px!important;
  padding:0 24px!important;border-radius:0!important;font-size:15px!important;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  line-height:1!important;white-space:nowrap;flex:0 0 auto}
.topbar .search .btn-search .iconfont,.topbar .search .btn-search i{margin:0!important;line-height:1}
.topbar .search .btn-search:hover{background:linear-gradient(135deg,#5b4de0,#4338ca)!important}

/* v5.1：按钮宽度收敛 + 手机端适配 */
#sj_search_form .btn-search{width:auto!important;min-width:92px;height:46px!important;
  padding:0 20px!important;border-radius:0!important;font-size:15px!important;
  line-height:1!important;display:inline-flex;align-items:center;justify-content:center;
  gap:6px;flex:0 0 auto;white-space:nowrap}
@media (max-width:640px){
  #sj_search_form .btn-search{min-width:84px;padding:0 12px!important;font-size:14px!important}
}

/* v5.2：图标占位收窄，按钮紧凑 */
#sj_search_form .btn-search > i{width:16px;flex:0 0 16px;overflow:hidden;text-align:center;font-size:15px;line-height:1}

/* v5.3：图标与文字间距微调 */
#sj_search_form .btn-search{gap:4px}
#sj_search_form .btn-search > i{width:14px;flex:0 0 14px}

/* v5.4：搜索图标按 rj 基准 14x14 / 13px 居中 */
#sj_search_form .btn-search > i{width:14px!important;height:14px!important;flex:0 0 14px!important;
  font-size:13px!important;line-height:14px!important;display:inline-flex!important;
  align-items:center;justify-content:center;align-self:center;overflow:visible!important;
  margin:0!important;text-align:center}

/* ===== v6：页脚响应式重排（修 vip2026.css .footer .wrap{display:flex} 导致的手机端挤压） ===== */
@media (max-width:991.98px){
  .footer .wrap{display:block;gap:0;max-width:100%}
  .ft-top{grid-template-columns:1fr 1fr;gap:24px 20px;padding-bottom:20px}
  .ft-brand{grid-column:1/-1}
  .ft-brand p{max-width:none}
  .ft-bot{margin-top:4px;padding-top:16px;border-top:1px solid var(--sj-line);
    flex-direction:column;align-items:center;justify-content:flex-start;gap:10px}
  .ft-bot .copy,.footer .ft-bot .flinks{text-align:center;width:100%}
  .ft-bot .flinks a{margin:0 6px;display:inline-block;line-height:2}
}
@media (max-width:640px){
  .footer{padding:30px 0 20px}
  .ft-top{grid-template-columns:1fr 1fr;gap:20px 16px}
  .ft-col h4{margin-bottom:8px}
  .ft-col a{line-height:1.9}
  .ft-bot{gap:8px}
}

/* v6.1：手机端最后一个栏目（帮助与支持）跨列横排，消除右下空档 */
@media (max-width:991.98px){
  .ft-top > .ft-col:last-of-type{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:0 20px}
  .ft-top > .ft-col:last-of-type h4{width:100%;margin:0 0 6px}
  .ft-top > .ft-col:last-of-type a{line-height:2}
}

/* ===== v7：页脚与内容区同一基准线（原 .wrap 1440 使页脚左窄右空） ===== */
@media (min-width:992px){
  .footer .wrap{display:block!important;max-width:1300px!important;margin:0 auto!important;padding:0 20px!important;width:100%!important}
  .ft-top{width:100%!important;grid-template-columns:1.25fr 1fr 1fr 1fr!important}
}