/* ============================================================
   Magnet Knowledge Cards — template-magnet-cards.php
   Scoped under .mc-wrap to avoid polluting Astra global styles.
   Light theme: page shell is light, cards keep colorful gradients.
   Source: 磁铁知识卡片100张（英文优先版）(1).html
   ============================================================ */
.mc-wrap{background:#ffffff;color:#333;font-family:'Segoe UI',Arial,'PingFang SC','Microsoft YaHei',sans-serif;min-height:100vh;box-sizing:border-box}
.mc-wrap *,.mc-wrap *:before,.mc-wrap *:after{box-sizing:border-box;margin:0;padding:0}
.mc-wrap .hdr{background:linear-gradient(135deg,#eaf3fb 0%,#d9e8f5 100%);padding:28px 32px 20px;border-bottom:3px solid #006B6B}
.mc-wrap .hdr-top{display:flex;align-items:center;gap:16px;margin-bottom:12px}
.mc-wrap .logo-badge{background:#006B6B;color:#fff;font-weight:700;font-size:11px;padding:4px 10px;border-radius:4px;letter-spacing:1px}
.mc-wrap .logo-badge img{display:block;max-height:56px;width:auto}
.mc-wrap .hdr h1{color:#1A3A5C;font-size:26px;font-weight:700}
.mc-wrap .hdr p{color:#2E75B6;font-size:15px}
.mc-wrap .hdr a{color:#2E75B6;text-decoration:underline}
.mc-wrap .stats{display:flex;gap:24px;margin-top:10px;flex-wrap:wrap}
.mc-wrap .stat .n{font-size:28px;font-weight:700;color:#006B6B}
.mc-wrap .stat .l{font-size:13px;color:#666}
.mc-wrap .seo-intro{max-width:900px;margin:0;padding:20px 32px 0;color:#555;font-size:13px;line-height:1.8}
.mc-wrap .seo-intro h1{color:#1A3A5C;font-size:18px;font-weight:700;margin-bottom:8px}
.mc-wrap .seo-intro ul{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:10px 0}
.mc-wrap .seo-intro ul li a{color:#2E75B6;text-decoration:none;background:#e8f0fb;padding:4px 12px;border-radius:20px;font-size:12px;display:inline-block;cursor:pointer}
.mc-wrap .seo-intro ul li a:hover{background:#d4e4f7}
.mc-wrap .seo-intro .topics{color:#888;font-size:11px}
.mc-wrap .ctrl{padding:16px 32px;background:#f5f7fa;border-bottom:1px solid #e0e0e0;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.mc-wrap .btn-all{background:#1A3A5C;color:#fff;border:1px solid #2E75B6;border-radius:20px;padding:4px 10px;font-size:11px;cursor:pointer;transition:.2s;flex-shrink:0}
.mc-wrap .btn-all.active{background:#006B6B;border-color:#006B6B;color:#fff;font-weight:700}
.mc-wrap .btn-cat.active{background:#fff;border-color:#006B6B;color:#006B6B;font-weight:700;box-shadow:inset 0 0 0 1px #006B6B}
.mc-wrap .btn-cat{background:#fff;color:#555;border:1px solid #ccc;border-radius:20px;padding:4px 10px;font-size:11px;cursor:pointer;transition:.2s;flex-shrink:0}
.mc-wrap .btn-cat:hover,.mc-wrap .btn-all:hover{opacity:.85}
.mc-wrap .btn-cat img.cat-ico{width:14px;height:14px;vertical-align:-2px;margin-right:4px}
.mc-wrap #catBtns{display:flex;flex-wrap:wrap;gap:6px;flex:1 1 0;min-width:0}
.mc-wrap .search-wrap{margin-left:auto;align-self:center;padding-left:8px;flex-shrink:0}
.mc-wrap .search-wrap input{background:#fff;border:1px solid #ccc;color:#333;padding:5px 12px;border-radius:20px;font-size:14px;width:190px;outline:none}
.mc-wrap .search-wrap input:focus{border-color:#2E75B6}
.mc-wrap .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;padding:24px 32px}
.mc-wrap .thumb{border-radius:12px;overflow:hidden;cursor:pointer;transition:transform .2s,box-shadow .2s;aspect-ratio:1;position:relative}
.mc-wrap .thumb:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,0,0,.25)}
.mc-wrap .thumb-inner{width:100%;height:100%;padding:18px;display:flex;flex-direction:column;justify-content:space-between}
.mc-wrap .thumb-hdr{display:flex;justify-content:space-between;align-items:flex-start}
.mc-wrap .cat-badge{font-size:11px;font-weight:700;letter-spacing:.5px;padding:3px 8px;border-radius:3px;background:rgba(255,255,255,.15);color:#fff;text-transform:uppercase}
.mc-wrap .card-num{font-size:13px;font-weight:700;color:rgba(255,255,255,.5)}
.mc-wrap .thumb-title{flex:1;display:flex;flex-direction:column;justify-content:center;padding:8px 0}
/* EN first */
.mc-wrap .t-en{font-size:17px;font-weight:700;color:#fff;line-height:1.4;margin-bottom:5px}
.mc-wrap .t-cn{font-size:12px;color:rgba(255,255,255,.55);line-height:1.4}
.mc-wrap .thumb-pts{font-size:12px;color:rgba(255,255,255,.8);line-height:1.6;padding:0}
.mc-wrap .thumb-pts li{list-style:none;padding-left:10px;position:relative}
.mc-wrap .thumb-pts li:before{content:"▸";position:absolute;left:0;color:rgba(255,255,255,.5)}
.mc-wrap .thumb-foot{border-top:1px solid rgba(255,255,255,.15);padding-top:8px;display:flex;justify-content:space-between;align-items:center}
.mc-wrap .brand-sm{font-size:11px;color:rgba(255,255,255,.5);font-weight:600;letter-spacing:.5px}
.mc-wrap .maggie-sm{font-size:11px;color:rgba(255,255,255,.4)}
/* Lightbox */
.mc-wrap .lb{display:none;position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:1000;align-items:center;justify-content:center}
.mc-wrap .lb.open{display:flex}
.mc-wrap .lb-wrap{position:relative;width:560px;max-width:96vw}
.mc-wrap .lb-card{width:560px;height:560px;max-width:96vw;max-height:96vw;border-radius:20px;overflow:hidden;padding:36px;display:flex;flex-direction:column;justify-content:space-between}
.mc-wrap .lbc-hdr{display:flex;justify-content:space-between;align-items:flex-start}
.mc-wrap .lbc-badge{font-size:12px;font-weight:700;letter-spacing:1px;padding:4px 12px;border-radius:4px;background:rgba(255,255,255,.2);color:#fff;text-transform:uppercase}
.mc-wrap .lbc-num{font-size:15px;font-weight:700;color:rgba(255,255,255,.5)}
.mc-wrap .lbc-body{flex:1;display:flex;flex-direction:column;justify-content:center;padding:12px 0}
/* EN first in lightbox */
.mc-wrap .lbc-en-title{font-size:23px;font-weight:700;color:#fff;line-height:1.35;margin-bottom:5px}
.mc-wrap .lbc-cn-title{font-size:14px;color:rgba(255,255,255,.55);line-height:1.4;margin-bottom:16px}
.mc-wrap .lbc-divider{height:1px;background:rgba(255,255,255,.2);margin-bottom:14px}
.mc-wrap .lbc-pts{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px}
.mc-wrap .lbc-pt .en{color:#fff;font-size:13px;font-weight:500;line-height:1.5}
.mc-wrap .lbc-pt .cn{color:rgba(255,255,255,.5);font-size:12px;font-style:italic;line-height:1.5}
.mc-wrap .lbc-foot{border-top:1px solid rgba(255,255,255,.2);padding-top:12px;display:flex;justify-content:space-between;align-items:center}
.mc-wrap .brand-lg{font-size:14px;color:rgba(255,255,255,.7);font-weight:700;letter-spacing:1px}
.mc-wrap .maggie-lg{font-size:13px;color:rgba(255,255,255,.45);letter-spacing:.5px}
.mc-wrap .lb-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.1);border:none;color:#fff;font-size:24px;width:44px;height:44px;border-radius:50%;cursor:pointer;transition:.2s;display:flex;align-items:center;justify-content:center}
.mc-wrap .lb-nav:hover{background:rgba(255,255,255,.25)}
.mc-wrap .lb-prev{left:-56px}.mc-wrap .lb-next{right:-56px}
.mc-wrap .lb-close{position:absolute;top:-44px;right:0;background:none;border:none;color:#aaa;font-size:28px;cursor:pointer}
.mc-wrap .lb-actions{display:flex;gap:10px;justify-content:center;margin-top:14px}
.mc-wrap .act-btn{background:#1A3A5C;color:#90CAF9;border:1px solid #2E75B6;border-radius:8px;padding:9px 22px;font-size:14px;cursor:pointer;transition:.2s}
.mc-wrap .act-btn:hover{background:#2E75B6;color:#fff}
.mc-wrap .lb-counter{text-align:center;color:#666;font-size:14px;margin-top:8px}
.mc-wrap .tip{position:fixed;bottom:24px;right:24px;background:#1A3A5C;border:1px solid #2E75B6;color:#90CAF9;padding:10px 16px;border-radius:8px;font-size:12px;opacity:0;transition:opacity .3s;pointer-events:none;z-index:1001}
.mc-wrap .tip.show{opacity:1}
@media(max-width:640px){.mc-wrap .lb-prev{left:-4px}.mc-wrap .lb-next{right:-4px}.mc-wrap .lbc-pts{grid-template-columns:1fr}.mc-wrap .grid{padding:16px;gap:12px}.mc-wrap .ctrl{padding:12px 16px}.mc-wrap .search-wrap{margin-left:0;width:100%;padding-left:0}.mc-wrap .search-wrap input{width:100%}}