:root{--bg:#f6f7f9;--panel:#fff;--border:#e3e6ea;--text:#1f2328;--muted:#6b7280;--primary:#2563eb;--primary-text:#fff;--danger-bg:#fef2f2;--danger-text:#b91c1c;--ok-bg:#ecfdf5;--ok-text:#047857;--warn-text:#b45309}@media (prefers-color-scheme:dark){:root{--bg:#17191c;--panel:#202326;--border:#33383d;--text:#e6e8eb;--muted:#9aa1a9;--primary:#3b82f6;--primary-text:#fff;--danger-bg:#3a1d1d;--danger-text:#fca5a5;--ok-bg:#12332a;--ok-text:#6ee7b7;--warn-text:#fcd34d}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,sans-serif;line-height:1.5}.app{min-height:100vh;display:flex}.sidebar{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:220px;padding:16px 12px;display:flex}.brand{padding:8px 12px 20px;font-size:16px;font-weight:700}.nav{flex-direction:column;flex:1;gap:4px;display:flex}.nav-item{color:var(--text);border-radius:8px;padding:10px 12px;text-decoration:none;display:block}.nav-item:hover{background:var(--bg)}.nav-item.active{background:var(--primary);color:var(--primary-text)}.logout{border:1px solid var(--border);color:var(--muted);cursor:pointer;background:0 0;border-radius:8px;margin-top:16px;padding:10px 12px}.logout:hover{color:var(--danger-text);border-color:var(--danger-text)}.content{flex:1;width:100%;max-width:none;padding:24px 28px}.page h1{margin:0 0 18px;font-size:22px}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;margin-bottom:20px;padding:18px}.card h2{margin:0 0 12px;font-size:16px}.card.narrow{max-width:460px}.settings-grid{grid-template-columns:1fr;align-items:start;gap:20px;display:grid}.settings-grid .card{margin-bottom:0}.settings-grid .card.full{grid-column:auto}.form-max{width:100%;max-width:none}.field-row{gap:12px;display:flex}.field-row .field{flex:1}@media (width<=720px){.field-row{flex-direction:column}}@media (width<=900px){.settings-grid{grid-template-columns:1fr}}.desc{color:var(--muted);margin:0 0 14px}.desc code{background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:1px 6px}.field{margin-bottom:14px;display:block}.field span{color:var(--muted);margin-bottom:6px;font-size:13px;display:block}input,select{border:1px solid var(--border);background:var(--panel);width:100%;color:var(--text);border-radius:8px;padding:9px 12px;font-size:14px}input:focus,select:focus{outline:2px solid var(--primary);outline-offset:0;border-color:#0000}.btn{border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;border-radius:8px;padding:9px 16px;font-size:14px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--primary);color:var(--primary-text);border-color:#0000}.error{background:var(--danger-bg);color:var(--danger-text);border-radius:8px;margin:12px 0;padding:10px 12px;font-size:14px}.ok{background:var(--ok-bg);color:var(--ok-text);border-radius:8px;margin:12px 0;padding:10px 12px;font-size:14px}.hint{color:var(--muted);font-size:13px}.login-wrap{justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;width:360px;padding:28px}.login-title{text-align:center;margin:0 0 22px;font-size:20px}.cards{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px;display:grid}.cards.two{grid-template-columns:repeat(2,1fr)}.stat-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:18px}.stat-card.warn{border-color:var(--warn-text)}.stat-value{font-size:28px;font-weight:700}.stat-label{color:var(--muted);margin-top:4px;font-size:13px}.table{border-collapse:collapse;width:100%;font-size:14px}.table th,.table td{text-align:left;border-bottom:1px solid var(--border);padding:10px 12px}.table th{color:var(--muted);font-size:13px;font-weight:600}.table .empty{text-align:center;color:var(--muted);padding:24px}.filters{align-items:center;gap:10px;margin-bottom:14px;display:flex}.filters .search{width:220px}.filters select{width:auto}.pager{align-items:center;gap:14px;display:flex}@media (width<=720px){.app{flex-direction:column}.sidebar{flex-flow:wrap;align-items:center;width:100%}.nav{flex-direction:row}.cards,.cards.two{grid-template-columns:repeat(2,1fr)}}