/* front - 首页样式 */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:100%;background:#E8F4FD;color:#1f2d3d;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(74,158,255,0.18), transparent 60%),
    radial-gradient(800px 500px at -10% 30%, rgba(120,200,255,0.18), transparent 60%),
    linear-gradient(180deg,#E8F4FD 0%,#F2F9FF 50%,#E8F4FD 100%);
  background-attachment:fixed;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(74,158,255,0.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(74,158,255,0.06) 1px,transparent 1px);
  background-size:48px 48px,48px 48px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 80%);
}
a{color:#1565d8;text-decoration:none}
a:hover{color:#0a4ea8}
img{max-width:100%;display:block}
.container{max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* Header */
.site-header{padding:48px 0 28px;text-align:center;position:relative;z-index:1}
.brand{display:inline-flex;align-items:center;gap:14px;margin-bottom:10px}
.brand-mark{
  width:54px;height:54px;border-radius:14px;
  background:linear-gradient(135deg,#4A9EFF,#6FC1FF);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:24px;
  box-shadow:0 12px 30px -10px rgba(74,158,255,0.6),inset 0 0 0 1px rgba(255,255,255,0.5);
}
.brand-text{display:flex;flex-direction:column;align-items:flex-start;line-height:1.1}
.brand-title{font-size:30px;font-weight:700;color:#0d2540;letter-spacing:.5px}
.brand-title .accent{color:#4A9EFF}
.brand-slogan{font-size:14px;color:#5b6b80;margin-top:4px}
.search-wrap{margin:24px auto 0;max-width:680px;position:relative}
.search-input{
  width:100%;height:54px;padding:0 56px 0 22px;border-radius:14px;border:1px solid rgba(74,158,255,0.25);
  background:rgba(255,255,255,0.85);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  font-size:16px;color:#1f2d3d;outline:none;
  box-shadow:0 8px 24px -12px rgba(74,158,255,0.4),inset 0 0 0 1px rgba(255,255,255,0.6);
  transition:all .25s ease;
}
.search-input:focus{border-color:#4A9EFF;background:#fff;box-shadow:0 0 0 4px rgba(74,158,255,0.15),0 8px 24px -12px rgba(74,158,255,0.4)}
.search-btn{
  position:absolute;right:6px;top:6px;height:42px;width:48px;border:none;border-radius:10px;
  background:linear-gradient(135deg,#4A9EFF,#6FC1FF);color:#fff;cursor:pointer;
  display:grid;place-items:center;font-size:18px;
  box-shadow:0 8px 18px -6px rgba(74,158,255,0.6);
}
.search-engine-tabs{margin-top:12px;display:flex;gap:8px;justify-content:center;font-size:13px;color:#5b6b80}
.search-engine-tabs button{
  background:rgba(255,255,255,0.6);border:1px solid rgba(74,158,255,0.18);
  padding:5px 12px;border-radius:999px;cursor:pointer;color:#5b6b80;
  transition:all .2s;
}
.search-engine-tabs button.active{background:#4A9EFF;color:#fff;border-color:#4A9EFF}

/* Section */
.section{margin:36px 0;position:relative;z-index:1}
.section-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;padding-left:4px}
.section-icon{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,rgba(74,158,255,0.18),rgba(111,193,255,0.25));
  display:grid;place-items:center;font-size:18px;color:#1565d8;
  border:1px solid rgba(74,158,255,0.25);
}
.section-title{font-size:20px;font-weight:700;color:#0d2540;margin:0;letter-spacing:.3px}
.section-count{font-size:13px;color:#6c7a90;background:rgba(255,255,255,0.6);padding:3px 10px;border-radius:999px;border:1px solid rgba(74,158,255,0.15)}

/* Grid */
.grid{display:grid;grid-template-columns:repeat(var(--cards-per-row,5),minmax(0,1fr));gap:16px}
@media(max-width:1100px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:860px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:620px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:420px){.grid{grid-template-columns:1fr}}

.card{
  position:relative;display:flex;flex-direction:column;gap:10px;padding:16px;
  background:rgba(255,255,255,0.78);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(74,158,255,0.18);
  border-radius:16px;color:#0d2540;
  transition:transform .28s cubic-bezier(.2,.7,.2,1),box-shadow .28s ease,border-color .28s ease;
  box-shadow:0 6px 18px -10px rgba(74,158,255,0.25);
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;pointer-events:none;border-radius:16px;
  background:linear-gradient(135deg,rgba(74,158,255,0.05),transparent 60%);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(74,158,255,0.45);
  box-shadow:0 18px 40px -16px rgba(74,158,255,0.45),0 0 0 1px rgba(74,158,255,0.25);
}
.card-head{display:flex;align-items:center;gap:10px}
.card-icon{
  width:36px;height:36px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,#eaf4ff,#d8ecff);
  display:grid;place-items:center;font-weight:700;color:#1565d8;font-size:15px;
  border:1px solid rgba(74,158,255,0.22);
  overflow:hidden;
}
.card-icon img{width:100%;height:100%;object-fit:contain;background:#fff}
.card-name{font-weight:600;font-size:15px;color:#0d2540;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}
.card-desc{font-size:13px;color:#5b6b80;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}

/* Empty */
.empty{text-align:center;padding:60px 20px;color:#6c7a90}

/* Footer */
.site-footer{
  margin-top:60px;padding:32px 0;text-align:center;color:#6c7a80;font-size:13px;
  border-top:1px solid rgba(74,158,255,0.12);
  background:linear-gradient(180deg,transparent,rgba(255,255,255,0.4));
}
.site-footer a{color:#5b6b80;margin:0 6px}
.site-footer a:hover{color:#1565d8}
.site-footer .sep{margin:0 6px;color:#bcc6d6}

/* hidden via search */
.is-hidden{display:none !important}

/* Responsive */
@media(max-width:620px){
  .site-header{padding:28px 0 16px}
  .brand-title{font-size:24px}
  .search-input{height:48px;font-size:15px;padding-right:50px}
  .search-btn{height:36px;width:42px}
}