:root{
  --bg:#0e1117; --panel:#161b24; --panel2:#1c222d; --line:#2a3240;
  --text:#e6ebf2; --muted:#8b97a8; --accent:#4d8dff; --accent2:#6fa8ff;
  --green:#28c76f; --red:#ff5c6c; --orange:#ffab3d; --purple:#a683ff; --cyan:#32c5d2;
  --radius:10px; --shadow:0 8px 28px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--text);font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--accent2);text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p{margin:0}
[hidden]{display:none!important}

/* ---------- 登录 ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(1000px 600px at 20% -10%,#1d3358 0%,transparent 60%),radial-gradient(800px 500px at 100% 100%,#25204a 0%,transparent 55%),var(--bg)}
.login-card{width:400px;padding:34px;background:rgba(22,27,36,.94);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.login-brand{display:flex;gap:14px;align-items:center;margin-bottom:26px}
.login-brand h1{font-size:19px;letter-spacing:.5px}
.logo{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-weight:700;font-size:22px;color:#fff;background:linear-gradient(135deg,#4d8dff,#7a5cff)}
.logo.small{width:28px;height:28px;border-radius:8px;font-size:15px}
#login-form label{display:block;color:var(--muted);font-size:12px;margin-bottom:16px}
#login-form input{display:block;width:100%;margin-top:6px;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:#0f141c;color:var(--text);outline:none}
#login-form input:focus{border-color:var(--accent)}
.captcha-row{display:flex;gap:10px;align-items:center;margin-top:6px}
#login-form .captcha-row input{flex:1;min-width:0;margin-top:0}
#captcha-img{width:130px;height:42px;flex:none;border:1px solid var(--line);border-radius:8px;cursor:pointer;background:#eef2f8;object-fit:cover}
#captcha-img:hover{border-color:var(--accent)}

/* ---------- 布局 ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:222px;flex:none;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side-brand{height:62px;display:flex;align-items:center;gap:10px;padding:0 18px;font-weight:600;border-bottom:1px solid var(--line)}
#nav{padding:12px 10px;flex:1;overflow:auto}
.nav-group{color:var(--muted);font-size:11px;letter-spacing:1px;padding:14px 10px 6px}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;color:#b9c3d2;cursor:pointer;margin-bottom:2px;transition:.15s}
.nav-item:hover{background:var(--panel2);color:#fff}
.nav-item.active{background:linear-gradient(90deg,rgba(77,141,255,.22),rgba(77,141,255,.06));color:#fff;border-left:2px solid var(--accent)}
.nav-ico{width:16px;text-align:center;opacity:.85}
.side-foot{padding:12px 16px;border-top:1px solid var(--line);color:var(--muted);font-size:11px;display:flex;align-items:center;gap:8px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--green);display:inline-block}
.main{flex:1;min-width:0}
.topbar{height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;border-bottom:1px solid var(--line);background:var(--panel);position:sticky;top:0;z-index:5}
.topbar h2{font-size:16px}
.topbar p{color:var(--muted);font-size:11px;margin-top:2px}
.topbar-right{display:flex;align-items:center;gap:8px}
.user-chip{color:var(--muted);font-size:12px;margin-right:6px}
.content{padding:22px 24px 40px}

/* ---------- 通用组件 ---------- */
.btn{padding:7px 13px;border:1px solid var(--line);border-radius:7px;background:var(--panel2);color:var(--text);cursor:pointer;transition:.15s;white-space:nowrap}
.btn:hover{border-color:var(--accent);color:#fff}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent2)}
.btn-ghost{background:transparent}
.btn-danger{color:var(--red);border-color:rgba(255,92,108,.35)}
.btn-sm{padding:4px 9px;font-size:12px}
.btn-block{width:100%;padding:11px;font-weight:600}
.btn:disabled{opacity:.5;cursor:not-allowed}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.grow{flex:1}
input,select,textarea{background:#0f141c;border:1px solid var(--line);border-radius:7px;color:var(--text);padding:8px 10px;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
select{min-width:130px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:18px}
.card h3{font-size:14px;margin-bottom:14px}
.grid{display:grid;gap:14px}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;position:relative;overflow:hidden}
.stat::after{content:"";position:absolute;right:-18px;top:-18px;width:70px;height:70px;border-radius:50%;background:var(--tint,rgba(77,141,255,.13))}
.stat .label{color:var(--muted);font-size:12px}
.stat .num{font-size:26px;font-weight:650;margin-top:6px;letter-spacing:.5px}
.stat .hint{font-size:11px;color:var(--muted);margin-top:4px}
.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;line-height:18px;border:1px solid transparent}
.b-blue{background:rgba(77,141,255,.14);color:#8ab4ff;border-color:rgba(77,141,255,.25)}
.b-green{background:rgba(40,199,111,.14);color:#5ddb98;border-color:rgba(40,199,111,.25)}
.b-red{background:rgba(255,92,108,.14);color:#ff8b97;border-color:rgba(255,92,108,.25)}
.b-orange{background:rgba(255,171,61,.14);color:#ffc477;border-color:rgba(255,171,61,.25)}
.b-gray{background:rgba(139,151,168,.12);color:#a4b0c0;border-color:rgba(139,151,168,.22)}
.b-purple{background:rgba(166,131,255,.14);color:#bfa4ff;border-color:rgba(166,131,255,.25)}
table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;color:var(--muted);font-weight:500;font-size:12px;padding:10px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:10px 10px;border-bottom:1px solid rgba(42,50,64,.6);vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:rgba(255,255,255,.018)}
.table-wrap{overflow-x:auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
.mono{font-family:"SFMono-Regular",Consolas,monospace;font-size:12px;color:#a9bdd8}
.ellipsis{max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.muted{color:var(--muted)}
.empty{padding:40px;text-align:center;color:var(--muted)}
.pager{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:12px 14px;color:var(--muted);font-size:12px}
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.toolbar input{min-width:200px}
.toolbar select{min-width:120px}
.bar{height:6px;border-radius:6px;background:var(--panel2);overflow:hidden;margin-top:6px}
.bar > i{display:block;height:100%;background:var(--accent)}

/* ---------- 弹窗 / 提示 ---------- */
.mask{position:fixed;inset:0;background:rgba(5,8,13,.72);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);width:560px;max-width:100%;max-height:86vh;overflow:auto}
.modal.wide{width:820px}
.modal-head{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
.modal-head h3{font-size:15px}
.modal-body{padding:20px}
.modal-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}
.close{cursor:pointer;color:var(--muted);font-size:20px;line-height:1}
.field{margin-bottom:14px}
.field label{display:block;color:var(--muted);font-size:12px;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%}
.field textarea{min-height:110px;resize:vertical}
.field .tip{color:var(--muted);font-size:11px;margin-top:5px}
pre{background:#0c1017;border:1px solid var(--line);border-radius:8px;padding:12px;overflow:auto;max-height:340px;font-size:12px;color:#b9cbe3;white-space:pre-wrap;word-break:break-all}
#toast-root{position:fixed;top:18px;right:18px;z-index:99;display:flex;flex-direction:column;gap:8px}
.toast{padding:11px 16px;border-radius:8px;background:var(--panel2);border:1px solid var(--line);box-shadow:var(--shadow);min-width:220px;max-width:420px;animation:slide .2s ease}
.toast.ok{border-left:3px solid var(--green)}
.toast.err{border-left:3px solid var(--red)}
@keyframes slide{from{transform:translateX(20px);opacity:0}to{transform:none;opacity:1}}
.kv{display:grid;grid-template-columns:120px 1fr;gap:8px 12px;font-size:13px}
.kv dt{color:var(--muted)}
.kv dd{margin:0;word-break:break-all}
@media(max-width:1000px){.grid-4{grid-template-columns:repeat(2,1fr)}.sidebar{width:64px}.side-brand span:not(.logo),.nav-item span:not(.nav-ico),.nav-group,.side-foot span:not(.dot){display:none}.nav-item{justify-content:center}}