:root{
  --bg:#f5f7fb; --card:#fff; --text:#141a2b; --muted:#6b7488; --line:#e6eaf2;
  --primary:#4f6bff; --primary2:#8a5cff; --ok:#16a34a; --warn:#d97706; --err:#dc2626;
  --radius:16px; --shadow:0 6px 24px -12px rgba(20,26,43,.18);
}
@media (prefers-color-scheme:dark){
  :root{ --bg:#0b0f1a; --card:#141a2b; --text:#e8ecf6; --muted:#97a1b8; --line:#232b40; --shadow:0 6px 24px -12px rgba(0,0,0,.6); }
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font:15px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
.muted{color:var(--muted)}
.small{font-size:13px}
.hidden{display:none!important}

/* 顶栏 */
.topbar{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);font-size:17px}
.brand i{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:grid;place-items:center;color:#fff;font-style:normal;font-size:14px}
.nav{display:flex;gap:6px}
.nav a{padding:7px 14px;border-radius:999px;color:var(--muted);font-size:14px}
.nav a:hover,.nav a.on{background:var(--card);color:var(--text);box-shadow:var(--shadow)}

/* 按钮 / 表单 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;cursor:pointer;padding:11px 22px;border-radius:12px;font-weight:600;
  background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;transition:transform .15s,box-shadow .2s,opacity .2s;box-shadow:0 8px 20px -10px var(--primary)}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.btn.ghost{background:var(--card);color:var(--text);border:1px solid var(--line);box-shadow:none}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:9px}
.btn.danger{background:var(--err);box-shadow:none}
.btn.block{width:100%}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;color:var(--muted);font-weight:500}
.input,select.input,textarea.input{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:11px;background:var(--card);outline:none;transition:border-color .2s,box-shadow .2s}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 18%,transparent)}
textarea.input{min-height:90px;resize:vertical}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.pad{padding:22px}

/* 标签 */
.tag{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;background:color-mix(in srgb,var(--muted) 14%,transparent);color:var(--muted)}
.tag.ok{background:color-mix(in srgb,var(--ok) 14%,transparent);color:var(--ok)}
.tag.warn{background:color-mix(in srgb,var(--warn) 16%,transparent);color:var(--warn)}
.tag.err{background:color-mix(in srgb,var(--err) 14%,transparent);color:var(--err)}
.tag.info{background:color-mix(in srgb,var(--primary) 14%,transparent);color:var(--primary)}

/* 骨架屏 */
.skeleton{position:relative;overflow:hidden;background:color-mix(in srgb,var(--muted) 12%,transparent);border-radius:var(--radius)}
.skeleton::after{content:"";position:absolute;inset:0;transform:translateX(-100%);
  background:linear-gradient(90deg,transparent,color-mix(in srgb,#fff 45%,transparent),transparent);animation:shimmer 1.3s infinite}
@keyframes shimmer{to{transform:translateX(100%)}}

/* 弹窗 */
.modal{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:16px;background:rgba(10,14,25,.45);backdrop-filter:blur(3px);animation:fade .2s}
.modal .box{width:100%;max-width:460px;max-height:92vh;overflow:auto;animation:pop .25s cubic-bezier(.2,.9,.3,1.2)}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.97)}}

/* 提示 */
.toast{position:fixed;left:50%;top:22px;z-index:99;transform:translateX(-50%);padding:10px 18px;border-radius:12px;background:var(--text);color:var(--bg);font-size:14px;box-shadow:var(--shadow);animation:pop .25s}
.toast.err{background:var(--err);color:#fff}

/* 表格 */
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.table th{color:var(--muted);font-weight:500;font-size:13px;white-space:nowrap}
.table-wrap{overflow-x:auto}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;word-break:break-all}

.footer{padding:40px 0 100px;text-align:center;color:var(--muted);font-size:13px}

/* 手机底部标签栏 */
.tabbar{display:none}
@media (max-width:720px){
  .nav{display:none}
  .tabbar{display:flex;position:fixed;left:12px;right:12px;bottom:12px;z-index:30;justify-content:space-around;padding:6px;border-radius:18px;
    background:color-mix(in srgb,var(--card) 92%,transparent);backdrop-filter:blur(12px);border:1px solid var(--line);box-shadow:var(--shadow)}
  .tabbar a{flex:1;text-align:center;padding:6px 0;border-radius:12px;color:var(--muted);font-size:12px}
  .tabbar a b{display:block;font-size:18px;line-height:1.2}
  .tabbar a.on{background:color-mix(in srgb,var(--primary) 12%,transparent);color:var(--primary)}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}