:root{--side-w:236px;--a1:#3b82f6;--a2:#6366f1;
--font:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
[data-accent=blue]{--a1:#3b82f6;--a2:#6366f1}
[data-accent=purple]{--a1:#8b5cf6;--a2:#d946ef}
[data-accent=green]{--a1:#10b981;--a2:#06b6d4}
[data-accent=orange]{--a1:#f59e0b;--a2:#ef4444}
[data-accent=pink]{--a1:#ec4899;--a2:#f97316}

/* ===== 第一套:原生深色(macOS / GNOME 质感) ===== */
[data-ui=native]{
--bg:#14161a;--bg-img:none;--side-bg:#1a1c21;--card:#21242b;--card-border:#30343d;--blur:none;
--text:#e6e8ec;--muted:#8b93a1;--border:#363b46;--input:#1a1d22;--row:#2b2f38;--hover:#2a2e37;
--primary:var(--a1);--btn-bg:var(--a1);--grad:linear-gradient(135deg,var(--a1),var(--a2));
--th-bg:#2a2e37;--th-fg:#aab1bd;--shadow:0 1px 2px #0006,0 8px 24px #0004;--radius:10px;
--req-bg:#3b2226;--req-fg:#ff8d8d;--opt-bg:#232f45;--opt-fg:#8fb4ff;
--ok-bg:#1f3a2a;--ok-fg:#6fdc8c;--warn-bg:#3d3320;--warn-fg:#f5c46b;
color-scheme:dark}

/* ===== 第二套:现代 SaaS 仪表盘(轻量卡片 + 柔和渐变 + 毛玻璃) ===== */
[data-ui=saas]{
--bg:#f6f7fb;--bg-img:linear-gradient(135deg,#eef2ff 0%,#f5f3ff 45%,#ecfeff 100%);
--side-bg:rgba(255,255,255,.62);--card:rgba(255,255,255,.72);--card-border:rgba(255,255,255,.95);--blur:blur(14px);
--text:#1e2433;--muted:#6b7385;--border:#dfe3ee;--input:rgba(255,255,255,.85);--row:#eceff6;--hover:rgba(99,102,241,.08);
--primary:var(--a1);--btn-bg:linear-gradient(135deg,var(--a1),var(--a2));--grad:linear-gradient(135deg,var(--a1),var(--a2));
--th-bg:rgba(99,102,241,.08);--th-fg:#4b5368;--shadow:0 4px 24px rgba(80,90,160,.10);--radius:16px;
--req-bg:linear-gradient(135deg,#fee2e2,#fce7f3);--req-fg:#dc2626;
--opt-bg:linear-gradient(135deg,#dbeafe,#e0e7ff);--opt-fg:#3b5bdb;
--ok-bg:linear-gradient(135deg,#d1fae5,#cffafe);--ok-fg:#047857;
--warn-bg:linear-gradient(135deg,#fef3c7,#ffedd5);--warn-fg:#b45309;
color-scheme:light}

*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;font-family:var(--font);font-size:14px;color:var(--text);background-color:var(--bg);
background-image:var(--bg-img);background-attachment:fixed;min-height:100vh}
a{color:var(--primary)}
svg.ico{width:18px;height:18px;flex:none}

/* 布局 */
.shell{display:grid;grid-template-columns:var(--side-w) 1fr;min-height:100vh}
.shell.no-side{grid-template-columns:1fr}
.main{min-width:0;display:flex;flex-direction:column}
.content{padding:8px 28px 40px;max-width:1240px;width:100%;margin:0 auto}
.content.narrow{max-width:1000px}

/* 侧边栏 */
.sidebar{background:var(--side-bg);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);
border-right:1px solid var(--card-border);padding:14px 12px;position:sticky;top:0;height:100vh;
display:flex;flex-direction:column;gap:4px}
.traffic{display:none;gap:7px;padding:2px 10px 14px}
.traffic i{width:12px;height:12px;border-radius:50%;display:block}
[data-ui=native] .traffic{display:flex}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;padding:6px 10px 16px}
.logo{width:32px;height:32px;border-radius:9px;background:var(--grad);display:grid;place-items:center;color:#fff;flex:none}
.logo.sm{width:28px;height:28px;border-radius:8px}
.nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;border-radius:9px;background:transparent;
color:var(--muted);font-size:14px;border:0;text-align:left;cursor:pointer;text-decoration:none;filter:none}
.nav-item:hover{background:var(--hover);color:var(--text);filter:none}
.nav-item.on{background:var(--hover);color:var(--primary);font-weight:600;box-shadow:inset 3px 0 0 var(--primary)}
[data-ui=saas] .nav-item.on{background:var(--grad);color:#fff;box-shadow:0 6px 16px color-mix(in srgb,var(--a1) 35%,transparent)}

/* 顶栏(右上角:主题 / 颜色 / 语言 / 用户) */
.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:12px;
padding:12px 28px;background:var(--side-bg);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);
border-bottom:1px solid var(--card-border)}
.crumb{display:flex;align-items:center;gap:10px;font-weight:700}
.shell:not(.no-side) .crumb{visibility:hidden}
.topright{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.tools{display:flex;align-items:center;gap:10px}
.accents{display:flex;gap:6px;align-items:center}
.dot{width:18px;height:18px;border-radius:50%;padding:0;border:2px solid transparent;box-shadow:0 0 0 1px var(--border)}
.dot:hover{filter:none;transform:scale(1.15)}
.dot.on{border-color:var(--text)}
.userchip{display:flex;align-items:center;gap:8px;padding:3px 12px 3px 3px;border-radius:999px;border:1px solid var(--border);
cursor:pointer;position:relative;background:var(--card)}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700}
.uinfo{display:flex;flex-direction:column;line-height:1.2;font-size:12px;gap:2px}
.role-badge{background:var(--grad);color:#fff;padding:1px 8px;border-radius:10px;font-size:10px;width:max-content}
.menu{position:absolute;right:0;top:calc(100% + 8px);min-width:150px;background:var(--card);backdrop-filter:blur(16px);
border:1px solid var(--card-border);border-radius:12px;padding:6px;box-shadow:var(--shadow)}
.menu button{width:100%;justify-content:flex-start}
[data-ui=native] .menu{background:#262a32}

/* 页头 */
.page-head{margin:18px 0 18px}
.page-head h2{margin:0 0 4px;font-size:22px}
.page-head p{margin:0;color:var(--muted)}

/* 卡片 / 表格 */
.card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);box-shadow:var(--shadow);
backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);padding:18px;margin-bottom:16px}
.card.flush{padding:0;overflow:hidden}
.card h3{margin:0 0 12px;font-size:15px}
table{width:100%;border-collapse:collapse}
th{background:var(--th-bg);color:var(--th-fg);text-align:left;padding:11px 12px;font-size:12px;font-weight:600;white-space:nowrap}
td{padding:11px 12px;border-top:1px solid var(--row);vertical-align:middle;word-break:break-all}
tbody tr:hover td{background:var(--hover)}
.xscroll{overflow-x:auto}

/* 表单 / 按钮 */
input[type=text],input[type=password],input[type=number],select,textarea{padding:8px 11px;border:1px solid var(--border);
border-radius:9px;font-size:13px;background:var(--input);color:var(--text);outline:none;max-width:100%;font-family:inherit}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 22%,transparent)}
input[type=checkbox]{accent-color:var(--primary)}
button,.btn{background:var(--btn-bg);color:#fff;border:0;border-radius:9px;padding:7px 14px;cursor:pointer;font-size:13px;
font-family:inherit;text-decoration:none;display:inline-flex;align-items:center;gap:6px;transition:filter .15s,transform .05s}
button:hover,.btn:hover{filter:brightness(1.1)}
button:active{transform:translateY(1px)}
button:disabled{opacity:.5;cursor:not-allowed}
button.gray,.btn.gray{background:transparent;color:var(--text);border:1px solid var(--border)}
button.danger{background:linear-gradient(135deg,#ef4444,#f43f5e)}
[data-ui=native] button.danger{background:#e5484d}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:8px}
.row label{display:flex;align-items:center;gap:4px}
.msg{margin-top:8px;color:var(--req-fg)}.msg.ok{color:var(--ok-fg)}
.hint{color:var(--muted);font-size:12px;margin:6px 0}
.empty{text-align:center;color:var(--muted);padding:30px}

/* 徽章 */
.tag{padding:2px 10px;border-radius:10px;font-size:12px;white-space:nowrap;display:inline-block}
.req{background:var(--req-bg);color:var(--req-fg)}
.opt{background:var(--opt-bg);color:var(--opt-fg)}
.okt{background:var(--ok-bg);color:var(--ok-fg)}
.warn{background:var(--warn-bg);color:var(--warn-fg)}
.pin{background:transparent;border:1px solid}

.pager{display:flex;gap:12px;justify-content:center;align-items:center;margin:16px 0;font-size:13px}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* 仪表盘 */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-bottom:16px}
.stat{display:flex;align-items:center;gap:14px;margin:0}
.stat .ic{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;color:#fff;flex:none}
.stat .ic svg{width:23px;height:23px}
.stat .num{font-size:26px;font-weight:700;line-height:1.1}
.stat .lbl{color:var(--muted);font-size:13px;margin-top:2px}
.g-blue{background:linear-gradient(135deg,#3b82f6,#6366f1)}
.g-green{background:linear-gradient(135deg,#10b981,#06b6d4)}
.g-purple{background:linear-gradient(135deg,#8b5cf6,#d946ef)}
.g-orange{background:linear-gradient(135deg,#f59e0b,#ef4444)}
.g-pink{background:linear-gradient(135deg,#ec4899,#f97316)}
.g-red{background:linear-gradient(135deg,#ef4444,#f43f5e)}
.remind{display:flex;gap:12px;align-items:center;padding:12px;border-radius:12px;border:1px solid var(--row);
margin-bottom:10px;background:var(--hover)}
.remind .ri{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:#fff;flex:none}
.remind .grow{flex:1;min-width:0}
.remind .rt{font-weight:600}
.remind .rd{color:var(--muted);font-size:12px;word-break:break-all;margin-top:2px}

/* 登录页:渐变玻璃卡片 */
.login-wrap{min-height:calc(100vh - 120px);display:grid;place-items:center;padding:20px;
background:radial-gradient(520px 300px at 18% 12%,color-mix(in srgb,var(--a1) 28%,transparent),transparent),
radial-gradient(520px 320px at 85% 85%,color-mix(in srgb,var(--a2) 26%,transparent),transparent)}
.login-card{width:390px;max-width:100%;padding:34px;border-radius:22px;background:var(--card);
backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);
box-shadow:0 24px 70px rgba(0,0,0,.25);position:relative;overflow:hidden}
.login-card::before{content:"";position:absolute;width:220px;height:220px;right:-70px;top:-80px;background:var(--grad);
filter:blur(55px);opacity:.45;z-index:0}
.login-card>*{position:relative;z-index:1}
.login-card .logo{width:46px;height:46px;border-radius:14px;margin-bottom:14px}
.login-card h2{margin:0 0 6px;font-size:22px}
.login-card p{margin:0 0 20px;color:var(--muted)}
.login-card input{width:100%;margin-bottom:12px;padding:11px 13px}
.login-card button{width:100%;justify-content:center;padding:11px}

@media(max-width:860px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:row;overflow-x:auto;padding:8px;border-right:0;border-bottom:1px solid var(--card-border)}
  .brand,.traffic,.sidebar .grow{display:none!important}
  .nav-item{width:auto;white-space:nowrap}
  .shell:not(.no-side) .crumb{visibility:visible}
  .content{padding:8px 14px 30px}.topbar{padding:10px 14px}
  .cols{grid-template-columns:1fr}.uinfo{display:none}
}