:root{
  color-scheme:light;
  --ui-canvas:#eef1f5;
  --ui-panel:#ffffff;
  --ui-subtle:#f3f5f8;
  --ui-ink:#121826;
  --ui-muted:#667085;
  --ui-line:#dde3ec;
  --ui-accent:#0f766e;
  --ui-accent-soft:#d9f3ef;
  --ui-accent-ink:#fff;
  --ui-sage:#0f766e;
  --ui-sage-soft:#e6f7f4;
  --ui-honey:#b45309;
  --ui-honey-soft:#fff7ed;
  --ui-shadow:#0f172a1f;
  --ui-glow:#c7ebe6;
  --ui-side:#0b1220;
  --ui-side-ink:#e8eef8;
  --ui-side-muted:#93a0b8;
  --radius:18px;
  --sidebar:248px;
  --font:"Plus Jakarta Sans","Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
[data-theme="dark"]{
  color-scheme:dark;
  --ui-canvas:#0b1220;
  --ui-panel:#121a2b;
  --ui-subtle:#1a2438;
  --ui-ink:#eef3fb;
  --ui-muted:#9aa8c0;
  --ui-line:#2a3650;
  --ui-accent:#2dd4bf;
  --ui-accent-soft:#143532;
  --ui-accent-ink:#042f2e;
  --ui-sage:#2dd4bf;
  --ui-sage-soft:#12332f;
  --ui-honey:#fbbf24;
  --ui-honey-soft:#2a2110;
  --ui-shadow:#00000066;
  --ui-side:#070d18;
  --ui-side-ink:#e8eef8;
  --ui-side-muted:#8b98b0;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:var(--font);background:
  radial-gradient(900px 420px at 100% -10%, rgba(15,118,110,.10), transparent 55%),
  radial-gradient(700px 360px at 0% 0%, rgba(37,99,235,.06), transparent 50%),
  var(--ui-canvas);color:var(--ui-ink)}
a{color:var(--ui-accent);text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
.icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.theme-toggle,.text-button{border:1px solid var(--ui-line);background:var(--ui-panel);border-radius:999px;cursor:pointer;color:var(--ui-ink)}
.theme-toggle{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center}
.text-button{padding:8px 14px;font-size:13px}
.theme-sun{display:none}[data-theme="dark"] .theme-moon{display:none}[data-theme="dark"] .theme-sun{display:block}

/* ===== login (Ruifan-like) ===== */
.login-page{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:100px 24px 32px;background:
  radial-gradient(800px 360px at 15% 0%, var(--ui-glow, #f6e4d3), transparent 60%),
  var(--ui-canvas)}
.login-topbar{position:fixed;inset:0 0 auto 0;padding:20px 28px;display:flex;justify-content:space-between;align-items:center;z-index:20}
.login-topbar-actions{display:flex;gap:10px;align-items:center;margin-left:auto}
.login-card{width:100%;max-width:420px;background:var(--ui-panel);border:1px solid var(--ui-line);border-radius:28px;box-shadow:0 8px 40px -20px var(--ui-shadow);padding:36px 32px 28px}
.login-brand-logo{display:flex;justify-content:center;margin-bottom:8px}
.brand-logo,.brand-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(145deg,#14b8a6,#0f766e);display:inline-block;box-shadow:0 8px 20px var(--ui-shadow)}
.login-emblem{width:48px;height:48px;margin:0 auto 10px;border-radius:16px;background:var(--ui-accent-soft);display:flex;align-items:center;justify-content:center;color:var(--ui-accent)}
.login-card h1{margin:8px 0 6px;font-size:26px;text-align:center;letter-spacing:.2px;font-weight:720}
.login-card .muted{color:var(--ui-muted);text-align:center;margin:0 0 20px;font-size:14px;line-height:1.65}
.login-card label{display:block;margin:0 0 12px;font-size:13px;color:var(--ui-muted)}
.login-card input,.form-grid input,.form-grid select,.form-grid textarea,.toolbar input{
  width:100%;margin-top:6px;border:1px solid var(--ui-line);background:var(--ui-subtle);color:var(--ui-ink);border-radius:14px;padding:12px 14px;outline:none}
.login-card input:focus,.form-grid input:focus,.form-grid textarea:focus{border-color:var(--ui-accent);box-shadow:0 0 0 3px var(--ui-accent-soft)}
.full-width,.btn{appearance:none;border:0;border-radius:14px;background:linear-gradient(180deg,#14b8a6,#0f766e);color:var(--ui-accent-ink);padding:12px 16px;font-weight:700;cursor:pointer;box-shadow:0 8px 18px -12px #0f766eaa}
.full-width{width:100%;margin-top:8px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn.secondary{background:var(--ui-panel);color:var(--ui-ink);border:1px solid var(--ui-line)}
.login-links{display:flex;justify-content:space-between;gap:10px;margin-top:16px;font-size:13px}
.login-footer,.login-icp{margin-top:18px;color:var(--ui-muted);font-size:12px;text-align:center}
.login-extra{margin-top:18px;display:grid;gap:10px}
.login-extra .ghost{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;border-radius:14px;border:1px dashed var(--ui-line);color:var(--ui-muted);background:var(--ui-subtle);cursor:pointer}
.toast{position:fixed;left:50%;top:22px;transform:translateX(-50%);background:#302c29;color:#fff;padding:10px 16px;border-radius:999px;font-size:13px;z-index:99;opacity:0;pointer-events:none;transition:.2s}
.toast.show{opacity:1}.toast.err{background:#7a2a2a}
.modal-mask{position:fixed;inset:0;background:rgba(40,30,24,.45);display:none;align-items:center;justify-content:center;z-index:80;padding:20px}
.modal-mask.show{display:flex}
.modal{background:var(--ui-panel);border:1px solid var(--ui-line);border-radius:22px;max-width:420px;width:100%;padding:22px;box-shadow:0 20px 60px var(--ui-shadow)}
.modal h3{margin:0 0 8px}.modal p{margin:0;color:var(--ui-muted);font-size:14px;line-height:1.6}
.modal .actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}

/* ===== workspace ===== */
.app-sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);background:
  linear-gradient(180deg,#0d1526 0%,#0b1220 55%,#0a101c 100%);
  border-right:1px solid rgba(255,255,255,.06);display:flex;flex-direction:column;z-index:40;color:var(--ui-side-ink);
  box-shadow:8px 0 32px -20px rgba(0,0,0,.45)}
.sidebar-brand{min-height:88px;padding:20px 18px;display:flex;align-items:center;gap:12px;font-weight:750}
.sidebar-brand .mark{width:38px;height:38px;border-radius:12px;flex:0 0 auto;background:linear-gradient(145deg,#14b8a6,#0f766e);box-shadow:0 8px 20px -8px #14b8a6aa}
.brand-title{font-size:15px;line-height:1.2;color:#f4f7fb}.brand-sub{font-size:11px;color:var(--ui-side-muted);font-weight:500;margin-top:2px}
.nav-groups{padding:0 12px;overflow:auto;flex:1}
.nav-group{margin-bottom:16px}
.nav-group-title{font-size:11px;color:#6b7a96;padding:8px 12px 6px;letter-spacing:.1em;text-transform:uppercase}
.nav-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;background:transparent;color:#c5d0e2;padding:11px 12px;border-radius:12px;cursor:pointer;font-size:14px;transition:background .15s,color .15s}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:linear-gradient(90deg,rgba(20,184,166,.22),rgba(20,184,166,.06));color:#5eead4;font-weight:700;box-shadow:inset 3px 0 0 #14b8a6}
.sidebar-bottom{padding:14px 16px;border-top:1px solid rgba(255,255,255,.06);font-size:12px;color:var(--ui-side-muted)}
.sidebar-bottom b{color:#e8eef8}
.workspace{margin-left:var(--sidebar);min-height:100vh}
.topbar{max-width:1600px;min-height:72px;margin:0 auto;padding:14px 40px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar-location{font-weight:720;font-size:18px;letter-spacing:-.02em}
.topbar-tools{display:flex;align-items:center;gap:12px}
.content{max-width:1600px;margin:0 auto;padding:8px 40px 40px}
.card,.panel{background:var(--ui-panel);border:1px solid var(--ui-line);border-radius:22px;box-shadow:0 8px 30px -18px var(--ui-shadow);padding:22px}
.panel h2,.card h2{margin:0 0 6px;font-size:20px}
.panel .sub,.card .sub{margin:0 0 16px;color:var(--ui-muted);font-size:13px;line-height:1.55}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--ui-panel);border:1px solid var(--ui-line);border-radius:18px;padding:16px}
.stat span{color:var(--ui-muted);font-size:12px}.stat b{display:block;margin-top:6px;font-size:22px}
.grid-2{display:grid;grid-template-columns:380px minmax(0,1fr);gap:18px;align-items:start}
.grid-video{display:grid;grid-template-columns:280px minmax(0,1fr);gap:18px;align-items:start}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;align-items:center}
.toolbar input{flex:1;min-width:160px;margin-top:0}
.btn-sm{padding:8px 12px;border-radius:12px;border:1px solid var(--ui-line);background:var(--ui-subtle);cursor:pointer;font-size:13px}
.btn-sm.primary{background:var(--ui-accent);border-color:var(--ui-accent);color:#fff}
.btn-sm.danger{color:#995661}
.badge{display:inline-flex;padding:3px 9px;border-radius:999px;font-size:12px;background:var(--ui-sage-soft);color:var(--ui-sage)}
.badge.off{background:#f8e9ea;color:#995661}
.badge.vip{background:var(--ui-honey-soft);color:var(--ui-honey)}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:12px 10px;border-bottom:1px solid var(--ui-line);text-align:left;vertical-align:middle}
th{color:var(--ui-muted);font-weight:650}
.row-actions{display:flex;gap:8px;white-space:nowrap}
.cover{width:48px;height:48px;border-radius:10px;object-fit:cover;background:var(--ui-subtle);border:1px solid var(--ui-line)}
.player-box video{width:100%;max-height:420px;border-radius:16px;background:#000}
.form-grid{display:grid;gap:12px}
.muted-box{padding:14px;border:1px dashed var(--ui-line);border-radius:14px;color:var(--ui-muted);font-size:13px;line-height:1.55;white-space:pre-wrap}
.empty{padding:36px 16px;text-align:center;color:var(--ui-muted)}
.hidden{display:none!important}
.seg{display:inline-flex;background:var(--ui-subtle);border:1px solid var(--ui-line);border-radius:999px;padding:3px;gap:2px}
.seg button{border:0;background:transparent;padding:7px 12px;border-radius:999px;cursor:pointer;color:var(--ui-muted);font-size:13px}
.seg button.active{background:var(--ui-panel);color:var(--ui-ink);font-weight:700;box-shadow:0 1px 4px var(--ui-shadow)}
.vip-plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.vip-plan{border:1px solid var(--ui-line);border-radius:18px;padding:16px;background:var(--ui-subtle)}
.vip-plan b{font-size:20px}.vip-price{color:var(--ui-accent);font-size:22px;font-weight:750;margin:8px 0}
.mp-bind-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.mp-bind-actions{display:flex;gap:8px;flex-wrap:wrap}
.mp-qr{width:220px;height:220px;border-radius:16px;border:1px solid var(--ui-line);background:#fff;object-fit:contain;margin:8px auto}
.mp-qr-status{color:var(--ui-muted);font-size:14px;margin:8px 0 12px}
.mp-board{margin-top:14px;border-radius:22px;padding:22px;background:#141414;color:#f2f2f2;border:1px solid #2c2c2c;box-shadow:0 16px 40px -24px #000}
.mp-board-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:14px}
.mp-board-title{font-size:20px;font-weight:750}
.mp-board-sub{margin-top:4px;color:#bdbdbd;font-size:13px}
.mp-steps{margin:0 0 14px;padding-left:20px;color:#cfcfcf;font-size:13px;line-height:1.7}
.mp-steps code{background:#2a2a2a;padding:1px 6px;border-radius:6px}
.mp-steps a{color:#8ec8ff}
.mp-board-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:12px}
.mp-board-grid label{display:block;font-size:12px;color:#aaa}
.mp-board-grid textarea{width:100%;margin-top:6px;border:1px solid #3a3a3a;background:#1c1c1c;color:#f5f5f5;border-radius:12px;padding:12px;min-height:120px;resize:vertical}
.mp-board-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.mp-board-result{margin-top:12px;padding:12px 14px;border-radius:12px;background:#1c1c1c;border:1px dashed #3a3a3a;color:#cfcfcf;font-size:13px;line-height:1.55}
.oa-chip{display:flex;align-items:center;gap:10px;padding:5px 14px 5px 5px;border-radius:999px;border:1px solid var(--ui-line);background:var(--ui-panel);box-shadow:0 10px 24px -16px var(--ui-shadow);max-width:280px;animation:chipIn .35s ease}
@keyframes chipIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.oa-chip-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;background:var(--ui-subtle);border:2px solid var(--ui-accent-soft)}
.oa-chip-meta{min-width:0;display:flex;flex-direction:column;line-height:1.2}
.oa-chip-meta b{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:160px}
.oa-chip-meta span{font-size:11px;color:var(--ui-muted)}
.mat-shell{display:grid;gap:16px}
.mat-hero{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap;padding:26px 28px;border-radius:24px;background:
  radial-gradient(520px 200px at 0% 0%, rgba(15,118,110,.14), transparent 58%),
  radial-gradient(420px 180px at 100% 0%, rgba(37,99,235,.08), transparent 55%),
  linear-gradient(165deg,var(--ui-panel),var(--ui-subtle));border:1px solid var(--ui-line);box-shadow:0 16px 40px -28px var(--ui-shadow)}
.mat-hero h2{margin:0 0 6px;font-size:26px;letter-spacing:-.02em}
.mat-hero-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.mat-login-gate{display:flex;justify-content:center;padding:8px 0}
.mat-login-card{width:min(520px,100%);text-align:center;padding:32px 28px;border-radius:24px;border:1px solid var(--ui-line);background:var(--ui-panel);box-shadow:0 16px 40px -28px var(--ui-shadow)}
.mat-login-card h3{margin:0 0 8px}.mat-login-card p{margin:0 0 16px;color:var(--ui-muted);font-size:14px;line-height:1.6}
.mat-main.dimmed{opacity:.45;pointer-events:none;filter:grayscale(.15)}
.mat-tabs{display:flex;gap:6px;flex-wrap:wrap;padding:6px;background:rgba(0,0,0,.03);border:1px solid var(--ui-line);border-radius:18px}
[data-theme="dark"] .mat-tabs{background:rgba(255,255,255,.03)}
.mat-tabs button{border:0;background:transparent;padding:10px 14px;border-radius:14px;cursor:pointer;color:var(--ui-muted);font-size:14px;transition:.15s}
.mat-tabs button span{margin-left:4px;opacity:.75;font-size:12px}
.mat-tabs button.active{background:var(--ui-panel);color:var(--ui-accent);font-weight:700;box-shadow:0 4px 14px -8px var(--ui-shadow)}
.mat-toolbar{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:14px}
.mat-hint{color:var(--ui-muted);font-size:13px}
.mat-form{margin-top:12px}
.mat-form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:12px}
.mat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;margin-top:16px}
.mat-card{border:1px solid var(--ui-line);border-radius:22px;overflow:hidden;background:var(--ui-panel);display:flex;flex-direction:column;box-shadow:0 14px 32px -26px var(--ui-shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s}
.mat-card:hover{transform:translateY(-3px);box-shadow:0 22px 40px -20px var(--ui-shadow);border-color:rgba(15,118,110,.28)}
.mat-thumb{position:relative;aspect-ratio:16/9;background:linear-gradient(145deg,#1a2438,#0f172a);overflow:hidden}
.mat-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.mat-card:hover .mat-thumb img{transform:scale(1.04)}
.mat-thumb img.broken{opacity:0}
.mat-ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700;color:#64748b}
.mat-type{position:absolute;left:10px;top:10px;padding:4px 10px;border-radius:999px;background:rgba(8,15,28,.72);backdrop-filter:blur(8px);color:#e2e8f0;font-size:11px;letter-spacing:.04em}
.mat-body{padding:14px 14px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.mat-title{font-weight:700;font-size:15px;line-height:1.35;max-height:2.7em;overflow:hidden}
.mat-meta{color:var(--ui-muted);font-size:12px;word-break:break-all;font-family:ui-monospace,Consolas,monospace}
.addr-box{display:grid;gap:6px;margin-top:2px}
.addr-row{display:grid;grid-template-columns:64px minmax(0,1fr) auto auto;gap:6px;align-items:center;padding:7px 8px;border-radius:12px;background:var(--ui-subtle);border:1px solid transparent}
.addr-row a.btn-sm{text-decoration:none;display:inline-flex;align-items:center}
.addr-row span{font-size:11px;color:var(--ui-muted);font-weight:650}
.addr-row code{font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ui-ink)}
.addr-row.muted em{font-style:normal;font-size:11px;color:var(--ui-muted)}
.addr-row .btn-sm{padding:4px 8px;font-size:11px}
.mat-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto;padding-top:4px}
.mat-empty{grid-column:1/-1;padding:56px 16px;text-align:center;color:var(--ui-muted);border:1px dashed var(--ui-line);border-radius:20px;background:var(--ui-panel)}
@media (max-width:980px){
  .app-sidebar{transform:translateX(-105%);transition:.2s}
  .app-sidebar.open{transform:none}
  .workspace{margin-left:0}
  .stats,.grid-2,.grid-video,.vip-plans,.mp-board-grid,.mat-form-grid{grid-template-columns:1fr}
  .content,.topbar{padding-inline:16px}
  .oa-chip{max-width:180px}
  .mat-grid{grid-template-columns:1fr}
}