/* 后台管理端布局（配合 Layui 组件样式，本地内置） */
:root{
    --a-bg:#f5f7fb;--a-side:#111827;--a-side2:#0b1220;--a-text:#1f2937;
    --a-muted:#6b7280;--a-line:#e8ecf4;--a-primary:#2563eb;--a-green:#16a34a;--a-red:#dc2626;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{background:var(--a-bg);color:var(--a-text);font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{text-decoration:none;color:var(--a-primary)}
h1,h2,h3,h4{margin:0;font-weight:600}

.admin{display:flex;min-height:100vh}
/* 侧栏 */
.side{
    width:218px;flex:0 0 218px;background:var(--a-side);color:#cbd5e1;
    display:flex;flex-direction:column;position:sticky;top:0;height:100vh;
}
.side-brand{display:flex;align-items:center;gap:9px;padding:18px 18px 16px;color:#fff;font-weight:700;font-size:15px;border-bottom:1px solid rgba(255,255,255,.07)}
.side-brand .m{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#2563eb,#6366f1);display:flex;align-items:center;justify-content:center;font-size:14px}
.side-menu{flex:1;overflow-y:auto;padding:10px 8px}
.side-group{padding:14px 12px 6px;font-size:11.5px;color:#64748b;letter-spacing:.6px}
.side-a{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:8px;color:#cbd5e1;font-size:13.5px;margin-bottom:2px}
.side-a:hover{background:rgba(255,255,255,.06);color:#fff}
.side-a.on{background:var(--a-primary);color:#fff;font-weight:500}
.side-foot{padding:12px;border-top:1px solid rgba(255,255,255,.07);font-size:12px;color:#64748b}

/* 主区 */
.a-main{flex:1;min-width:0;display:flex;flex-direction:column}
.a-top{
    height:56px;background:#fff;border-bottom:1px solid var(--a-line);
    display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:30;
}
.a-top h2{font-size:15px}
.a-top .who{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--a-muted)}
.a-top .who b{color:var(--a-text);font-weight:600}
.a-body{padding:20px 22px 40px}

/* 卡片/面板 */
.panel{background:#fff;border:1px solid var(--a-line);border-radius:12px;margin-bottom:16px;overflow:hidden}
.panel-h{padding:14px 18px;border-bottom:1px solid var(--a-line);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.panel-h h3{font-size:14.5px}
.panel-b{padding:18px}
.panel-b.tight{padding:0}

/* 统计 */
.stats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin-bottom:16px}
.st{background:#fff;border:1px solid var(--a-line);border-radius:12px;padding:16px 18px}
.st .l{font-size:12.5px;color:var(--a-muted)}
.st .v{font-size:24px;font-weight:700;margin-top:4px;letter-spacing:-.5px}
.st .h{font-size:12px;color:var(--a-muted);margin-top:2px}

/* 表格 */
.tb{width:100%;border-collapse:collapse;font-size:13.5px}
.tb th{text-align:left;padding:11px 14px;background:#fafbfe;color:var(--a-muted);font-weight:500;font-size:12.5px;border-bottom:1px solid var(--a-line);white-space:nowrap}
.tb td{padding:12px 14px;border-bottom:1px solid #f2f5fa;vertical-align:middle}
.tb tr:last-child td{border-bottom:0}
.tb tr:hover td{background:#fcfdff}
.tb-wrap{overflow-x:auto}

/* 标签 */
.tg{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;background:#f1f5f9;color:var(--a-muted)}
.tg-g{background:#ecfdf3;color:var(--a-green)}
.tg-r{background:#fef2f2;color:var(--a-red)}
.tg-y{background:#fffbeb;color:#b45309}
.tg-b{background:#eff4ff;color:var(--a-primary)}

/* 说明块 */
.note{padding:11px 14px;border-radius:9px;font-size:13px;background:#f8fafc;color:#475569;border:1px solid var(--a-line);margin-bottom:14px}
.note.warn{background:#fffbeb;border-color:#fde68a;color:#92400e}

/* 栅格 */
.frow{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.frow-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.fitem{margin-bottom:14px}
.fitem > label{display:block;font-size:13px;color:#475569;margin-bottom:6px;font-weight:500}
.fitem .tip{font-size:12px;color:var(--a-muted);margin-top:4px}
.ai{width:100%;padding:8px 11px;border:1px solid #dbe3ef;border-radius:8px;font-size:13.5px;outline:none;font-family:inherit;background:#fff}
.ai:focus{border-color:var(--a-primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
textarea.ai{min-height:90px;resize:vertical}

/* 页签 */
.atabs{display:flex;gap:2px;border-bottom:1px solid var(--a-line);margin-bottom:18px;overflow-x:auto}
.atab{padding:10px 15px;font-size:13.5px;color:var(--a-muted);border-bottom:2px solid transparent;white-space:nowrap}
.atab.on{color:var(--a-primary);border-bottom-color:var(--a-primary);font-weight:600}

/* 分页 */
.pg{display:flex;gap:6px;padding:14px 18px;align-items:center;flex-wrap:wrap;font-size:13px}
.pg a,.pg span{padding:5px 11px;border:1px solid var(--a-line);border-radius:7px;color:var(--a-muted);background:#fff}
.pg .cur{background:var(--a-primary);border-color:var(--a-primary);color:#fff}
.pg .info{border:0;background:none;margin-left:auto;color:#9ca3af}

/* 登录页 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1e3a8a 60%,#312e81)}
.login-box{width:390px;background:#fff;border-radius:16px;box-shadow:0 24px 70px rgba(0,0,0,.35);padding:34px 32px}
.login-box h1{font-size:19px;margin-bottom:4px}
.login-box p{color:var(--a-muted);font-size:13px;margin:0 0 22px}
.login-box .fitem{margin-bottom:14px}
.login-box .btn-main{width:100%;padding:11px;border:0;border-radius:9px;background:var(--a-primary);color:#fff;font-size:14px;cursor:pointer;font-family:inherit}
.login-box .err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca;padding:9px 12px;border-radius:8px;font-size:13px;margin-bottom:14px}
.login-box .cap{height:38px;width:112px;border:1px solid var(--a-line);border-radius:8px;cursor:pointer}

/* 空状态 */
.ae{padding:46px 16px;text-align:center;color:var(--a-muted);font-size:13px}

/* 文档中心 */
.doc-wrap{display:flex;gap:18px;align-items:flex-start}
.doc-nav{width:210px;flex:0 0 210px;background:#fff;border:1px solid var(--a-line);border-radius:12px;padding:10px;position:sticky;top:76px;max-height:calc(100vh - 100px);overflow:auto}
.doc-nav a{display:block;padding:7px 10px;border-radius:7px;color:#475569;font-size:13px}
.doc-nav a:hover{background:#f4f6fb;color:var(--a-primary)}
.doc-nav .g{padding:10px 10px 4px;font-size:11.5px;color:#94a3b8;letter-spacing:.5px}
.doc-main{flex:1;min-width:0}
.api{margin-bottom:16px}
.api-h{display:flex;gap:9px;align-items:center;margin-bottom:8px;flex-wrap:wrap}
.method{font-size:11.5px;padding:2px 8px;border-radius:5px;background:#eff4ff;color:var(--a-primary);font-weight:600;font-family:ui-monospace,monospace}
.method.post{background:#fff7ed;color:#c2410c}
.path{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;color:#0f172a;font-weight:600}
.api .desc{font-size:13px;color:var(--a-muted);margin-bottom:10px}
.api table{width:100%;border-collapse:collapse;font-size:12.5px;margin-bottom:8px}
.api th,.api td{border:1px solid var(--a-line);padding:7px 10px;text-align:left}
.api th{background:#fafbfe;color:var(--a-muted);font-weight:500}
.api pre{background:#0f172a;color:#e2e8f0;padding:12px 14px;border-radius:9px;font-size:12.5px;overflow:auto;margin:0}

@media (max-width:1100px){.stats{grid-template-columns:repeat(3,1fr)}}
@media (max-width:860px){
    .side{position:fixed;left:-220px;transition:.2s;z-index:80}
    .side.open{left:0}
    .stats{grid-template-columns:repeat(2,1fr)}
    .frow,.frow-3{grid-template-columns:1fr}
    .doc-wrap{flex-direction:column}
    .doc-nav{width:100%;flex:none;position:static;max-height:none}
    .a-body{padding:14px}
    .menu-toggle{display:inline-flex}
}
.menu-toggle{display:none;background:none;border:0;font-size:20px;cursor:pointer;color:var(--a-text);margin-right:8px}