:root{--bg:#f4f7fb;--surface:#fff;--ink:#192230;--muted:#6d7888;--line:#e5eaf1;--primary:#356ae6;--primary-dark:#2454bf;--success:#18865f;--warning:#b56a00;--danger:#c63f4a;--sidebar:#152033;--radius:14px;--shadow:0 8px 30px rgba(26,43,72,.08)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:14px}a{color:var(--primary);text-decoration:none}img{max-width:100%}
.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:248px;background:var(--sidebar);color:#fff;padding:22px 14px;overflow:auto;z-index:30}.brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;padding:0 10px 24px}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#5c8bff,#29b6a5)}.nav-label{padding:14px 12px 6px;color:#8290a8;font-size:12px;text-transform:uppercase}.side-nav{display:grid;gap:5px}.side-nav a{display:flex;align-items:center;gap:10px;color:#b9c5d6;padding:10px 12px;border-radius:10px}.side-nav a:hover,.side-nav a.active{background:rgba(255,255,255,.1);color:#fff}.main{margin-left:248px;min-height:100vh}.topbar{height:68px;background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.content{padding:26px 28px 50px;max-width:1600px;margin:auto}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px}.page-title{margin:0 0 5px;font-size:24px}.muted{color:var(--muted)}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card+.card{margin-top:18px}.grid{display:grid;gap:18px}.stats{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:20px}.stat .value{font-size:29px;font-weight:750;margin-top:10px}.stat .label{color:var(--muted)}.two-col{grid-template-columns:minmax(0,2fr) minmax(280px,1fr)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}label{font-weight:600}.form-control,.form-select,textarea{width:100%;border:1px solid #ccd5e1;border-radius:9px;padding:10px 12px;background:#fff;color:var(--ink);font:inherit}.form-control:focus,.form-select:focus,textarea:focus{outline:2px solid rgba(53,106,230,.18);border-color:var(--primary)}textarea{min-height:120px;resize:vertical}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid transparent;border-radius:9px;padding:9px 14px;font-weight:600;cursor:pointer;background:#fff;color:var(--ink)}.btn-sm{padding:6px 10px;font-size:12px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-outline{border-color:#cfd7e3}.btn-danger{background:var(--danger);color:#fff}.btn-warning{background:#fff4dc;color:#8a5600}.btn-success{background:#e6f7f0;color:#116c4d}.actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px 10px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}.table th{color:var(--muted);font-size:12px;white-space:nowrap}.badge{display:inline-flex;padding:4px 8px;border-radius:999px;background:#edf1f6;color:#536174;font-size:12px}.badge.success{background:#e6f7f0;color:#167354}.badge.warning{background:#fff3d9;color:#8b5c08}.badge.danger{background:#feecee;color:#a62f3a}.alert{padding:12px 15px;border-radius:10px;margin-bottom:16px}.alert-success{background:#e6f7f0;color:#126b4d}.alert-danger{background:#feecee;color:#a22f39}.filters{display:flex;gap:10px;align-items:end;flex-wrap:wrap;margin-bottom:16px}.filters .form-control,.filters .form-select{width:auto;min-width:150px}.pagination{display:flex;list-style:none;padding:18px 0 0;margin:0;gap:4px}.pagination a,.pagination span{display:block;padding:7px 10px;border:1px solid var(--line);border-radius:7px;background:#fff}.pagination .active span{background:var(--primary);color:#fff}.image-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}.image-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.image-preview{height:150px;background:#eef2f7;display:grid;place-items:center}.image-preview img{width:100%;height:100%;object-fit:cover}.image-meta{padding:12px}.ellipsis{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chart{height:220px;display:flex;align-items:end;gap:12px;padding-top:20px}.chart-group{flex:1;height:100%;display:flex;align-items:end;justify-content:center;gap:4px;position:relative;padding-bottom:28px}.bar{width:13px;min-height:3px;border-radius:5px 5px 0 0;background:var(--primary)}.bar.alt{background:#2cb59e}.chart-label{position:absolute;bottom:0;color:var(--muted);font-size:11px}.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 10% 10%,#dbe7ff,transparent 30rem),radial-gradient(circle at 90% 10%,#d8f5ef,transparent 28rem),var(--bg)}.auth-card{width:min(460px,100%);background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 70px rgba(31,52,84,.14);padding:30px}.auth-card h1{margin:0 0 8px}.auth-card .field{margin-top:15px}.auth-card .btn{width:100%;margin-top:18px}.captcha-row{display:grid;grid-template-columns:1fr 150px;gap:10px}.captcha-row img{height:43px;border:1px solid var(--line);border-radius:9px;cursor:pointer}.install-wrap{width:min(920px,100%)}.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.check{padding:10px;border-radius:9px;background:#f1f5fa}.check.ok{color:var(--success)}.check.bad{color:var(--danger);background:#fff0f1}.role-box{border:1px solid var(--line);border-radius:10px;padding:12px;margin-top:10px}.permission-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.mobile-toggle{display:none}.inline-form{display:inline}.avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;background:#dce5f3}.notice-item{padding:13px 0;border-bottom:1px solid var(--line)}.notice-item:last-child{border:0}.empty{text-align:center;padding:40px;color:var(--muted)}
@media(max-width:1050px){.stats{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr}.permission-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:translateX(0)}.main{margin-left:0}.mobile-toggle{display:inline-flex}.topbar{padding:0 16px}.content{padding:20px 14px 40px}.stats,.form-grid,.check-grid{grid-template-columns:1fr}.page-head{align-items:stretch;flex-direction:column}.permission-grid{grid-template-columns:1fr}.captcha-row{grid-template-columns:1fr}.captcha-row img{width:150px}.filters .form-control,.filters .form-select{width:100%}}