:root{
  --bg:#0b0e14; --panel:#12161f; --panel2:#171c28; --line:#222a3a;
  --gold:#c9a86a; --gold-soft:#e7d3a8; --text:#e8e6e1; --muted:#8a90a2; --danger:#e0594b;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);}
.hidden{display:none!important}

/* 登录 */
.login-mask{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:radial-gradient(900px 500px at 50% 30%,#161b27,#0b0e14);z-index:50}
.login-card{width:340px;padding:40px 32px;background:var(--panel);border:1px solid var(--line);border-radius:18px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.login-brand{font-size:40px;letter-spacing:8px;color:var(--gold-soft);font-weight:600}
.login-sub{color:var(--muted);letter-spacing:3px;margin:6px 0 28px;font-size:14px}
.login-card input{width:100%;height:46px;margin-bottom:14px;padding:0 16px;background:var(--panel2);border:1px solid var(--line);border-radius:10px;color:var(--text);font-size:15px;outline:none}
.login-card input:focus{border-color:var(--gold)}
.login-card button{width:100%;height:46px;border:none;border-radius:10px;background:linear-gradient(135deg,var(--gold),#b08a4e);color:#1a140a;font-size:16px;font-weight:600;cursor:pointer;letter-spacing:4px}
.login-card button:hover{filter:brightness(1.08)}
.login-err{color:var(--danger);font-size:13px;margin-top:12px;min-height:16px}

/* 框架 */
.app{display:flex;height:100vh}
.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column}
.logo{padding:24px 22px;font-size:22px;color:var(--gold-soft);letter-spacing:4px;font-weight:600}
.logo span{display:block;font-size:11px;letter-spacing:3px;color:var(--muted);margin-top:4px}
.sidebar nav{flex:1;padding:8px}
.sidebar nav a{display:block;padding:13px 18px;margin:4px 0;border-radius:10px;color:var(--muted);cursor:pointer;font-size:15px;transition:.15s}
.sidebar nav a:hover{background:var(--panel2);color:var(--text)}
.sidebar nav a.active{background:linear-gradient(90deg,rgba(201,168,106,.18),transparent);color:var(--gold-soft);border-left:3px solid var(--gold)}
.side-foot{padding:16px 22px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);display:flex;justify-content:space-between;align-items:center}
.side-foot #logout{color:var(--gold);cursor:pointer}

.main{flex:1;display:flex;flex-direction:column;overflow:hidden}
.topbar{padding:22px 30px;border-bottom:1px solid var(--line)}
.topbar h1{margin:0;font-size:20px;font-weight:600;color:var(--gold-soft);letter-spacing:2px}
.content{padding:26px 30px;overflow:auto;flex:1}

/* 仪表盘 */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}
.stat .num{font-size:34px;color:var(--gold-soft);font-weight:600}
.stat .lab{color:var(--muted);margin-top:6px;font-size:14px}
.hint{margin-top:22px;padding:16px 18px;background:var(--panel);border:1px dashed var(--line);border-radius:12px;color:var(--muted);font-size:14px;line-height:1.7}

/* 表格 */
.toolbar{margin-bottom:16px}
.grid{width:100%;border-collapse:collapse;background:var(--panel);border-radius:12px;overflow:hidden}
.grid th,.grid td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
.grid th{background:var(--panel2);color:var(--muted);font-weight:500}
.grid tbody tr:hover{background:var(--panel2)}
.grid .empty{text-align:center;color:var(--muted);padding:30px}
.ops button{padding:6px 12px;margin-right:6px;border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:8px;cursor:pointer;font-size:13px}
.ops button:hover{border-color:var(--gold)}
.ops button.danger{color:var(--danger);border-color:rgba(224,89,75,.4)}
.ops button.danger:hover{background:rgba(224,89,75,.12)}

/* 按钮 */
.primary{background:linear-gradient(135deg,var(--gold),#b08a4e);color:#1a140a;border:none;padding:10px 18px;border-radius:9px;cursor:pointer;font-weight:600}
.primary:hover{filter:brightness(1.08)}

/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:40}
.modal{width:460px;max-height:88vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px}
.modal h3{margin:0 0 18px;color:var(--gold-soft);font-weight:600;letter-spacing:1px}
.modal label{display:block;margin-bottom:14px;font-size:13px;color:var(--muted)}
.modal label input,.modal label select,.modal label textarea{width:100%;margin-top:6px;padding:10px 12px;background:var(--panel2);border:1px solid var(--line);border-radius:9px;color:var(--text);font-size:14px;font-family:inherit;outline:none}
.modal label input:focus,.modal label select:focus,.modal label textarea:focus{border-color:var(--gold)}
.modal label textarea{resize:vertical}
.modal label.ck{display:flex;align-items:center;gap:8px;color:var(--text)}
.modal label.ck input{width:auto;margin:0}
.modal-ops{display:flex;gap:10px;margin-top:8px}
.modal-ops button{flex:1;padding:11px;border-radius:9px;cursor:pointer;font-size:15px;border:1px solid var(--line);background:var(--panel2);color:var(--text)}
.modal-ops button.primary{border:none}

/* 状态选择 */
.st{padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--panel2);color:var(--text)}
.st-0{color:#e0b34b}.st-1{color:#5fbf8a}.st-2{color:var(--danger)}

/* 提示 */
.toast{position:fixed;top:24px;left:50%;transform:translateX(-50%);padding:12px 22px;border-radius:10px;z-index:60;font-size:14px;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.toast.ok{background:#1d3a2a;color:#9fe0b6;border:1px solid #2c5a40}
.toast.err{background:#3a1d1d;color:#f0a89c;border:1px solid #5a2c2c}
.loading,.err{padding:40px;text-align:center;color:var(--muted)}
.err{color:var(--danger)}

/* 勾选 + 批量操作 */
.ck-cell{width:42px;text-align:center}
.grid .row-ck,.ck-cell input{cursor:pointer;width:18px;height:18px;accent-color:var(--gold)}
.grid tbody tr.row-checked{background:rgba(201,168,106,0.10)}
.grid tbody tr:hover.row-checked{background:rgba(201,168,106,0.16)}
.toolbar{display:flex;align-items:center;gap:14px}
.toolbar-hint{color:var(--muted);font-size:13px}
.batch-bar{display:flex;align-items:center;gap:12px;padding:12px 16px;margin-bottom:14px;background:rgba(201,168,106,0.08);border:1px solid rgba(201,168,106,0.25);border-radius:10px}
.batch-bar .batch-count{color:var(--gold-soft);font-size:14px;letter-spacing:1px}
.batch-bar .batch-count b{color:#fff;font-weight:600;font-size:16px;margin:0 4px}
.batch-bar .batch-clear{background:transparent;border:1px solid var(--line);color:var(--muted);padding:6px 12px;border-radius:7px;cursor:pointer;font-size:13px;margin-left:auto}
.batch-bar .batch-clear:hover{color:var(--text);border-color:var(--muted)}
.batch-bar .batch-del{padding:8px 16px;border-radius:7px;cursor:pointer;font-size:13px;font-weight:600}

/* 图片上传 */
.img-up{margin-bottom:14px}
.img-up>label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.img-row{display:flex;gap:8px;align-items:center}
.img-row input{flex:1;padding:10px 12px;background:var(--panel2);border:1px solid var(--line);border-radius:9px;color:var(--text);font-size:14px;outline:none}
.img-row input:focus{border-color:var(--gold)}
.img-file-btn{padding:9px 14px;background:rgba(201,168,106,0.16);border:1px solid var(--gold);color:var(--gold-soft);border-radius:9px;cursor:pointer;font-size:13px;white-space:nowrap}
.img-file-btn:hover{background:rgba(201,168,106,0.26)}
.img-preview{margin-top:10px;min-height:80px;background:var(--panel2);border:1px dashed var(--line);border-radius:9px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.img-preview img{max-width:100%;max-height:180px;display:block;border-radius:6px}
.img-tip{color:var(--muted);font-size:13px;padding:20px}