:root{--nav: #07146a;--nav2: #050b43;--blue: #3157ff;--violet: #7b5cff;--cyan: #06c9f7;--ink: #15203c;--muted: #7b86a5;--line: #e7ecff;--bg: #eef3ff}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--ink);background:radial-gradient(circle at 0% 20%,rgba(49,87,255,.22),transparent 28%),linear-gradient(135deg,#eef3ff,#f8faff);font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}.admin-shell{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;padding:22px 16px;color:#fff;background:linear-gradient(180deg,var(--nav),var(--nav2));box-shadow:18px 0 42px #07146a38}.brand{display:flex;align-items:center;gap:12px;padding:4px 8px 24px}.brand-mark{width:42px;height:42px;border-radius:15px;display:grid;place-items:center;color:#07146a;font-weight:900;background:linear-gradient(135deg,#fff,#82ddff)}.brand strong{display:block;font-size:15px}.brand span{color:#ffffffa3;font-size:12px}.side-nav{display:grid;gap:8px}.side-nav a{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:15px;text-decoration:none;color:#ffffffb8;font-size:14px;font-weight:800}.side-nav a.active,.side-nav a:hover{color:#172554;background:#fff;box-shadow:0 12px 26px #0f172a24}.side-nav .icon{width:25px;height:25px;border-radius:9px;display:grid;place-items:center;background:#ffffff24}.side-nav a.active .icon,.side-nav a:hover .icon{color:#fff;background:#4f46e5}.main{min-width:0;padding:24px}.topbar{height:58px;display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}.crumb{color:var(--muted);font-size:13px;font-weight:800}h1{margin:2px 0 0;font-size:24px}h2{margin:0 0 12px;font-size:17px}.muted{color:var(--muted);font-size:13px;line-height:1.65;margin:0}.page-grid{display:grid;gap:18px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.card{background:#fffffff0;border:1px solid rgba(255,255,255,.8);border-radius:22px;padding:20px;box-shadow:0 22px 55px #26459424}.hero-card{color:#fff;background:radial-gradient(circle at 86% 18%,rgba(255,255,255,.24),transparent 25%),linear-gradient(135deg,var(--blue),var(--violet));overflow:hidden}.hero-copy{margin:0 0 16px;color:#ffffffc7;font-weight:700}.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.metric strong{display:block;font-size:27px;line-height:1.1}.metric span{display:block;margin-top:6px;color:#ffffffbd;font-size:12px;font-weight:800}.grid-4 .card h2{font-size:28px}label{display:grid;gap:6px;color:#5d6989;font-size:13px;font-weight:800}input,textarea,select{width:100%;border:1px solid #dfe6fb;border-radius:13px;padding:11px 13px;font:inherit;background:#fff}button,.button-link{color:#fff;background:linear-gradient(135deg,var(--blue),var(--violet));border:0;border-radius:12px;padding:11px 15px;font-weight:900;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}button.secondary,.button-link.secondary{background:#334155}button:disabled{cursor:default;opacity:.6}.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.space-between{justify-content:space-between}.end{justify-content:flex-end}.filter-actions{margin-top:14px}.doc-selector{margin:14px 0}.document-editor{display:grid;gap:12px}.table-head{margin-bottom:14px}.table-wrap{width:100%;overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:10px 8px;border-bottom:1px solid #e2e8f0;text-align:left;vertical-align:top;font-size:14px}code{background:#eff6ff;padding:2px 6px;border-radius:6px}.wallpaper-thumb{display:block;object-fit:cover;border:1px solid var(--line);border-radius:12px;background:#f8faff}.wallpaper-thumb.landscape{width:150px;height:84px}.wallpaper-thumb.portrait{width:78px;height:104px}.wallpaper-tabs{margin:18px 0 16px}.wallpaper-dialog{width:min(720px,calc(100vw - 32px));border:0;border-radius:18px;padding:22px;box-shadow:0 24px 80px #0f172a47}.wallpaper-dialog::backdrop{background:#0f172a5c}.wallpaper-dialog h2{margin-bottom:8px}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:800}.badge.unused{color:#92400e;background:#fef3c7}.badge.used{color:#065f46;background:#d1fae5}.account-menu{position:relative}.account-menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px 8px 8px;box-shadow:0 12px 28px #3157ff24;font-weight:800;color:#25307a}.account-menu summary::-webkit-details-marker{display:none}.admin-avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;display:inline-grid;place-items:center;flex:0 0 auto}.avatar-fallback{background:linear-gradient(135deg,var(--blue),var(--violet));color:#fff;font-size:14px;font-weight:900}.account-dropdown{position:absolute;right:0;top:calc(100% + 10px);width:230px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 18px 46px #0f172a29;padding:12px;z-index:20}.account-head{display:flex;align-items:center;gap:10px;padding:8px;border-bottom:1px solid #eef2ff;margin-bottom:8px}.account-head span{color:var(--muted);font-size:12px}.account-action{display:flex;width:100%;align-items:center;justify-content:center;text-decoration:none;border:0;border-radius:12px;padding:10px 12px;font-weight:800;color:#25307a;background:#f4f7ff;margin-top:8px}.profile-preview{display:flex;align-items:center;gap:14px;padding:14px;background:#f8faff;border:1px solid var(--line);border-radius:16px;margin-bottom:14px}.profile-preview .admin-avatar{width:58px;height:58px;font-size:22px}pre{overflow:auto;margin:0;background:#0f172a;color:#e2e8f0;border-radius:12px;padding:14px}@media(max-width:980px){.admin-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.side-nav{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.grid-4,.metric-row{grid-template-columns:1fr}table{min-width:980px}}