:root{
  --bg:#070b16; --bg2:#0b1224; --panel:rgba(17,26,48,.72); --line:rgba(80,140,220,.18);
  --cyan:#38e1ff; --blue:#4d8dff; --violet:#8b6bff; --gold:#e6c274; --green:#3ddc97; --red:#ff6b7a; --amber:#ffb454;
  --text:#e8eefc; --muted:#8fa3c6;
  --font:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}
#bg-glow{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(900px 500px at 15% -10%,rgba(61,128,255,.18),transparent 60%),
  radial-gradient(800px 500px at 95% 0%,rgba(139,107,255,.14),transparent 60%),
  radial-gradient(700px 600px at 50% 110%,rgba(56,225,255,.10),transparent 60%)}
.hidden{display:none!important}
.glass{background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(14px);
  box-shadow:0 18px 50px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.04)}

/* 登录 */
.login-wrap{position:relative;z-index:1;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:400px;max-width:100%;border-radius:18px;padding:34px 30px}
.brand{display:flex;align-items:center;gap:14px;margin-bottom:24px}
.brand.sm{margin-bottom:0}
.logo-mark{width:46px;height:46px;border-radius:13px;flex:none;display:grid;place-items:center;font-size:22px;font-weight:800;color:#06121f;
  background:linear-gradient(135deg,var(--cyan),var(--blue));box-shadow:0 6px 20px rgba(56,225,255,.35)}
.brand h1{font-size:22px;letter-spacing:1px}.brand h1 span{color:var(--cyan);font-weight:600;font-size:15px;margin-left:6px}
.brand .sub{color:var(--muted);font-size:13px;margin-top:2px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field>span{font-size:13px;color:var(--muted)}
.field input,.field select{background:rgba(6,12,26,.7);border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--text);font-size:14px;outline:none;font-family:inherit}
.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,225,255,.12)}
.btn{cursor:pointer;border:none;border-radius:10px;padding:11px 18px;font-size:14px;font-family:inherit;color:var(--text);
  background:rgba(255,255,255,.06);border:1px solid var(--line);transition:.15s}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04101c;font-weight:700;border:none}
.btn.block{width:100%;padding:12px;margin-top:4px}
.btn.sm{padding:6px 12px;font-size:12px}
.btn.ghost{background:transparent}
.btn.danger{background:rgba(255,107,122,.12);border-color:rgba(255,107,122,.4);color:var(--red)}
.btn.warn{background:rgba(255,180,84,.12);border-color:rgba(255,180,84,.4);color:var(--amber)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.login-err{color:var(--red);font-size:13px;min-height:18px;margin-bottom:8px}
.login-tip{color:var(--muted);font-size:12px;text-align:center;margin-top:16px}

/* 主体 */
.app{position:relative;z-index:1}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 26px;border-bottom:1px solid var(--line);
  background:rgba(7,11,22,.96);position:sticky;top:0;z-index:10}
.top-actions{display:flex;align-items:center;gap:10px}
.tab-btn{background:transparent;border:1px solid transparent;color:var(--muted);padding:8px 16px;border-radius:10px;cursor:pointer;font-family:inherit;font-size:14px}
.tab-btn.active{color:var(--cyan);background:rgba(56,225,255,.08);border-color:rgba(56,225,255,.3)}
.ghost-btn{background:transparent;border:1px solid var(--line);color:var(--muted);padding:7px 13px;border-radius:9px;cursor:pointer;font-family:inherit;font-size:13px}
.ghost-btn:hover{color:var(--text);border-color:var(--cyan)}
.who{color:var(--muted);font-size:13px}
.main{max-width:1280px;margin:0 auto;padding:26px}

/* 统计 */
.stats{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:26px}
.stat{border-radius:14px;padding:16px 18px}
.stat .num{font-size:30px;font-weight:800;line-height:1.1}
.stat .label{color:var(--muted);font-size:12.5px;margin-top:6px}
.stat.total .num{color:var(--cyan)} .stat.active .num{color:var(--green)}
.stat.unused .num{color:var(--blue)} .stat.expired .num{color:var(--amber)}
.stat.revoked .num{color:var(--red)} .stat.soon .num{color:var(--gold)}

.pane-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.pane-head h2{font-size:18px;font-weight:700;letter-spacing:.5px}

/* 设备卡片 */
.grid-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:16px}
.dev-card{border-radius:16px;padding:18px}
.dev-card .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.dev-card .fp{font-family:ui-monospace,Consolas,monospace;font-size:13px;color:var(--cyan)}
.dev-card .meta{font-size:13px;color:var(--muted);line-height:1.9}
.dev-card .meta b{color:var(--text);font-weight:600}
.gpu-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;border:1px solid var(--line);background:rgba(255,255,255,.04)}
.tag.gpu{color:var(--gold);border-color:rgba(230,194,116,.35)}
.tag.bf16{color:var(--green);border-color:rgba(61,220,151,.35)}
.tag.no-bf16{color:var(--amber);border-color:rgba(255,180,84,.35)}
.dev-card .actions{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}

/* 签发 */
.issue-card{border-radius:16px;padding:20px 22px;margin-bottom:20px}
.issue-card h3{font-size:15px;margin-bottom:16px}
.issue-row{display:flex;align-items:flex-end;gap:14px;flex-wrap:wrap}
.field.inline{margin-bottom:0;min-width:120px}
.field.inline select[multiple]{height:42px}
.hint{color:var(--muted);font-size:12px;margin-top:12px}

/* 表格 */
.table-wrap{border-radius:16px;overflow:auto}
.table{width:100%;border-collapse:collapse;font-size:13px;min-width:980px}
.table th,.table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.table th{color:var(--muted);font-weight:600;font-size:12px;background:rgba(255,255,255,.02);position:sticky;top:0}
.table td.code{font-family:ui-monospace,Consolas,monospace;color:var(--cyan);cursor:pointer}
.table tr:hover td{background:rgba(56,225,255,.03)}
.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px}
.badge.active{color:var(--green);background:rgba(61,220,151,.12);border:1px solid rgba(61,220,151,.3)}
.badge.unused{color:var(--blue);background:rgba(77,141,255,.12);border:1px solid rgba(77,141,255,.3)}
.badge.expired{color:var(--amber);background:rgba(255,180,84,.12);border:1px solid rgba(255,180,84,.3)}
.badge.revoked{color:var(--red);background:rgba(255,107,122,.12);border:1px solid rgba(255,107,122,.3)}
.row-actions{display:flex;gap:6px}
.row-actions button{padding:5px 10px;font-size:12px}
.muted{color:var(--muted)}

/* 弹层 */
.modal-mask{position:fixed;inset:0;background:rgba(3,7,16,.72);backdrop-filter:blur(4px);z-index:50;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{width:640px;max-width:100%;max-height:86vh;overflow:auto;border-radius:16px}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line)}
.modal-head h3{font-size:16px}.modal-head .ghost-btn{font-size:20px;line-height:1}
.modal-body{padding:22px}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}
.kv{display:grid;grid-template-columns:130px 1fr;gap:10px 16px;font-size:13.5px;line-height:1.7}
.kv dt{color:var(--muted)} .kv dd{word-break:break-all}
.hw-block{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
.hw-block h4{font-size:13.5px;color:var(--gold);margin-bottom:10px}

/* toast */
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:rgba(10,20,40,.95);border:1px solid var(--cyan);
  color:var(--text);padding:12px 22px;border-radius:12px;z-index:99;font-size:14px;box-shadow:0 10px 30px rgba(0,0,0,.5)}
.toast.err{border-color:var(--red)}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}.topbar{flex-wrap:wrap;gap:10px}}