/* 后台样式 */
*{box-sizing:border-box;margin:0;padding:0}
html,body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;background:#f4f6fb;color:#333;font-size:14px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}

.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:#2a2e3a;color:#cfd2da;flex-shrink:0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{padding:24px 18px 18px;border-bottom:1px solid rgba(255,255,255,.06)}
.brand-name{font-size:17px;font-weight:bold;color:#fff;line-height:1.3}
.brand-sub{font-size:11px;color:#7a7e8a;margin-top:3px;letter-spacing:.5px}
.nav{padding:14px 0;flex:1}
.nav a{display:flex;align-items:center;padding:11px 22px;color:#cfd2da;font-size:14px;transition:.2s;border-left:3px solid transparent}
.nav a:hover{background:rgba(255,255,255,.04);color:#fff}
.nav a.active{background:rgba(91,110,246,.15);color:#5b6ef6;border-left-color:#5b6ef6;font-weight:bold}
.nav a .ic{margin-right:10px;font-size:16px;width:18px;display:inline-block;text-align:center}

.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{height:54px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.04);display:flex;justify-content:space-between;align-items:center;padding:0 22px;position:sticky;top:0;z-index:10}
.tb-title{font-size:15px;font-weight:bold;color:#333}
.tb-user{font-size:13px;color:#888}
.tb-user b{color:#5b6ef6;margin-left:4px}

.content{padding:22px;flex:1}
.foot{padding:14px 22px;text-align:center;color:#aaa;font-size:12px}

@media(max-width:768px){
  .sidebar{width:60px}
  .brand-name,.brand-sub{display:none}
  .brand{padding:14px 10px;text-align:center}
  .brand::before{content:'SD';color:#5b6ef6;font-weight:bold;font-size:18px}
  .nav a{padding:11px 0;justify-content:center}
  .nav a .ic{margin:0;font-size:18px}
  .nav a span:not(.ic){display:none}
  .content{padding:14px}
}

/* ========== 智能识别填入 ========== */
.smart-card{background:linear-gradient(135deg,#f5f8ff 0%,#fdf4ff 100%);border:1px solid #e0e7ff}
.smart-row{display:flex;gap:10px;align-items:stretch}
.smart-row input,.smart-row textarea{flex:1;padding:11px 14px;border:1.5px solid #c7d2fe;border-radius:8px;font-size:14px;line-height:1.6;box-sizing:border-box;background:#fff;font-family:inherit;resize:vertical}
.smart-row input:focus,.smart-row textarea:focus{border-color:#5b6ef6;outline:none;box-shadow:0 0 0 3px rgba(91,110,246,.14)}
.smart-row button{padding:0 22px;background:#5b6ef6;color:#fff;border:0;border-radius:8px;font-size:14px;font-weight:bold;cursor:pointer;white-space:nowrap;line-height:1.5;align-self:flex-start}
.smart-row button:hover{background:#4a5fe0}
.smart-tip{font-size:11.5px;color:#8a93a5;margin-top:8px;line-height:1.6}
.sf-panel{display:none;margin-top:12px;border:1px solid #e3e6f0;border-radius:10px;background:#fff;max-height:300px;overflow-y:auto}
.sf-panel.show{display:block}
.sf-empty{padding:14px 16px;font-size:12.5px;color:#999;text-align:center}
.sf-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 14px;border-bottom:1px solid #f2f2f2;cursor:pointer;transition:.15s}
.sf-item:last-child{border-bottom:0}
.sf-item:hover{background:#f5f8ff}
.sf-item-name{font-size:14px;font-weight:bold;color:#222;margin-bottom:4px}
.sf-item-tags{display:flex;gap:5px;flex-wrap:wrap}
.sf-tag{padding:1px 8px;border-radius:9px;font-size:10.5px;font-weight:600;background:#eef1ff;color:#5b6ef6}
.sf-tag.src{background:#f0f6ff;color:#2b6cb0}
.sf-tag.sup{background:#f6f0ff;color:#7c3aed}
.sf-item-right{text-align:right;flex-shrink:0}
.sf-item-price{color:#e74c3c;font-size:13px;font-weight:bold;margin-bottom:3px}
.sf-item-btn{font-size:11.5px;color:#5b6ef6;font-weight:bold}
.sf-dropdown{display:none;position:absolute;left:0;right:0;top:100%;margin-top:4px;background:#fff;border:1px solid #d9d9d9;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.12);z-index:50;max-height:240px;overflow-y:auto}
.sf-dropdown.show{display:block}
.sf-dd-item{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;cursor:pointer;border-bottom:1px solid #f5f5f5}
.sf-dd-item:last-child{border-bottom:0}
.sf-dd-item:hover{background:#f5f8ff}
.sf-dd-name{font-size:13.5px;color:#222}
.sf-dd-cat{font-size:11px;color:#8a93a5;background:#f0f2f8;padding:2px 8px;border-radius:9px;white-space:nowrap}
.sf-toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(20px);background:rgba(30,32,42,.92);color:#fff;padding:11px 22px;border-radius:22px;font-size:13.5px;z-index:9999;opacity:0;pointer-events:none;transition:.25s;max-width:90vw;text-align:center}
.sf-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}