.tool-nav-row /* ===== 二维码弹窗 ===== */
.qr-modal{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:999999;display:none;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.qr-modal.show{display:flex;animation:fadeIn .15s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.qr-card{background:#fff;border-radius:16px;padding:24px 24px 20px;text-align:center;max-width:320px;width:85vw;box-shadow:0 20px 50px rgba(0,0,0,.5);position:relative;animation:popIn .2s ease}
@keyframes popIn{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}
.qr-card .qr-title{font-size:15px;font-weight:600;color:#1a1a2e;margin-bottom:14px}
.qr-card img{width:196px;height:196px;border-radius:12px;background:#fff;display:block;margin:0 auto;border:1px solid #eee}
.qr-card .qr-hint{margin-top:14px;font-size:12px;color:#94a3b8}
.qr-card .qr-close{position:absolute;top:8px;right:10px;background:none;border:none;font-size:22px;color:#999;cursor:pointer;line-height:1;width:32px;height:32px;border-radius:50%;transition:background .15s}
.qr-card .qr-close:hover{background:#f3f4f6;color:#111}
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