:root{--ink-900:#0d1117;--ink-700:#2b2f36;--ink-500:#5b6470;--ink-300:#9aa3ad;--sand-100:#f6f1e8;--sand-200:#efe7da;--sand-300:#e2d6c4;--cloud-50:#f7f9fc;--cloud-100:#edf1f7;--brand-600:#1c5cff;--brand-700:#1749c8;--accent-500:#ff7a45;--success-500:#1aa36f;--warning-500:#d98b1e;--line:#11182714;--shadow-lg:0 24px 60px #0d111724;--shadow-md:0 16px 40px #0d11171f;--shadow-sm:0 8px 20px #0d111714}*{box-sizing:border-box}body{background:radial-gradient(circle at top left, #fff 0%, var(--sand-100) 35%, var(--cloud-100) 100%);color:var(--ink-900);margin:0;font-family:Manrope,PingFang SC,Microsoft YaHei,sans-serif}body:before{content:"";pointer-events:none;opacity:.25;z-index:-1;background-image:radial-gradient(#1118270f 1px,#0000 1px);background-size:24px 24px;position:fixed;inset:0}h1,h2,h3,.brand{font-family:Fraunces,Times New Roman,serif}a{color:inherit;text-decoration:none}#root{min-height:100vh}.admin-shell{grid-template-columns:280px 1fr;gap:0;min-height:100vh;display:grid}.sidebar{color:#d6dce5;background:linear-gradient(#0d1117 0%,#121a23 55%,#141b24 100%);border-right:1px solid #ffffff0f;flex-direction:column;gap:28px;min-height:100vh;padding:28px 22px;display:flex;position:sticky;top:0}.brand-block{grid-template-columns:44px 1fr;align-items:center;gap:14px;display:grid}.brand-mark{color:#fff;background:linear-gradient(135deg,#1c5cff,#7b91ff);border-radius:14px;place-items:center;width:44px;height:44px;font-weight:700;display:grid;box-shadow:0 10px 24px #1c5cff66}.brand{color:#f8fafc;font-size:22px;font-weight:700}.brand-sub{color:#9aa3ad;letter-spacing:.06em;text-transform:uppercase;font-size:12px}.menu-label{color:#7c8794;letter-spacing:.2em;text-transform:uppercase;font-size:11px}.menu{flex-direction:column;gap:10px;display:flex}.menu-item{color:#cdd6e1;border-radius:14px;align-items:center;gap:10px;padding:12px 14px;font-size:14px;transition:all .16s;display:flex}.menu-item:hover{color:#fff;background:#ffffff14}.menu-item-active{color:#fff;background:linear-gradient(135deg,#1c5cffe6,#ff7a45e6);box-shadow:inset 0 0 0 1px #ffffff24,0 10px 30px #ff7a4540}.sidebar-footer{color:#9aa3ad;border-top:1px solid #ffffff14;gap:6px;margin-top:auto;padding-top:16px;font-size:12px;display:grid}.footer-chip{color:#e2e8f0;background:#ffffff14;border-radius:999px;align-items:center;gap:8px;padding:6px 10px;font-size:11px;display:inline-flex}.admin-main{flex-direction:column;min-width:0;display:flex}.topbar{border:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow-sm);background:#ffffffd1;border-radius:20px;justify-content:space-between;align-items:center;gap:20px;margin:26px 28px 0;padding:20px 24px;display:flex}.topbar h1{letter-spacing:-.02em;margin:0;font-size:26px}.topbar p{color:var(--ink-500);margin:6px 0 0;font-size:13px}.topbar-actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.account-switch{color:var(--ink-500);border:1px solid var(--line);background:#fff;border-radius:999px;align-items:center;gap:8px;padding:6px 10px;font-size:12px;display:flex;position:relative;box-shadow:0 8px 20px #0d111714}.account-trigger{color:var(--ink-700);cursor:pointer;background:#fff;border:none;border-radius:999px;outline:none;align-items:center;gap:6px;padding:6px 26px 6px 8px;font-size:12px;display:inline-flex}.account-trigger:focus{box-shadow:inset 0 0 0 1px #1c5cff66}.caret{border-left:5px solid #0000;border-right:5px solid #0000;border-top:6px solid var(--ink-500);width:0;height:0;margin-left:2px}.account-menu{border:1px solid var(--line);min-width:180px;box-shadow:var(--shadow-md);z-index:10;background:#fff;border-radius:16px;padding:8px;position:absolute;top:calc(100% + 8px);left:0}.account-option{text-align:left;width:100%;color:var(--ink-700);cursor:pointer;background:0 0;border:none;border-radius:10px;padding:8px 12px;font-size:13px}.account-option:hover{background:var(--cloud-50)}.account-option.is-active{color:var(--brand-600);background:#1c5cff1a;font-weight:600}.primary-btn,.ghost-btn{cursor:pointer;border:1px solid #0000;border-radius:999px;padding:8px 16px;font-size:12px;font-weight:600}.primary-btn{background:var(--brand-600);color:#fff;box-shadow:0 10px 24px #1c5cff40}.primary-btn:hover{background:var(--brand-700)}.ghost-btn{border-color:var(--line);color:var(--ink-700);background:#fff}.avatar{color:#fff;background:#111827;border-radius:50%;place-items:center;width:36px;height:36px;font-size:12px;font-weight:700;display:grid}.admin-content{padding:26px 28px 40px}.page-grid{gap:18px;display:grid}.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;display:grid}.stat-card{border:1px solid var(--line);box-shadow:var(--shadow-sm);background:#fff;border-radius:20px;padding:20px}.stat-card h3{letter-spacing:-.02em;margin:8px 0;font-size:30px}.stat-label{color:var(--ink-500);text-transform:uppercase;letter-spacing:.2em;margin:0;font-size:12px}.stat-trend{font-size:12px;font-weight:600}.stat-up{color:var(--success-500)}.stat-down{color:var(--warning-500)}.panel{border:1px solid var(--line);box-shadow:var(--shadow-sm);background:#fff;border-radius:22px;padding:22px}.panel-head{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.panel-head h2{margin:0;font-size:18px}.panel-head span{color:var(--ink-500);font-size:12px}.table-wrap{overflow-x:auto}.table{border-collapse:collapse;width:100%}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;padding:14px 10px;font-size:13px}.table th{color:var(--ink-500);text-transform:uppercase;letter-spacing:.12em;font-size:11px;font-weight:600}.table tbody tr:hover{background:var(--cloud-50)}.status{border-radius:999px;align-items:center;gap:6px;padding:4px 12px;font-size:12px;font-weight:600;display:inline-flex}.status:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px;display:inline-block}.status-success{color:var(--success-500);background:#1aa36f29}.status-warning{color:var(--warning-500);background:#d98b1e33}.status-info{color:var(--brand-600);background:#1c5cff29}.filters{grid-template-columns:repeat(4,minmax(0,1fr));align-items:end;gap:12px;display:grid}.filters label{color:var(--ink-500);gap:6px;font-size:12px;display:grid}.filters select{border:1px solid var(--line);color:var(--ink-700);background:#fff;border-radius:14px;padding:10px 12px}.channel-list{gap:14px;display:grid}.channel-item{gap:8px;display:grid}.channel-top{justify-content:space-between;font-size:13px;display:flex}.progress-track{background:#e5e7eb;border-radius:999px;height:10px;overflow:hidden}.progress-bar{background:linear-gradient(90deg,#1c5cff,#ff7a45);height:100%}.action-list{color:var(--ink-700);gap:10px;margin:0;padding-left:18px;display:grid}.action-list li{font-size:14px}.login-shell{background:radial-gradient(circle at top right, #fff 0%, var(--sand-100) 40%, var(--cloud-100) 100%);place-items:center;min-height:100vh;padding:32px;display:grid}.login-card{border:1px solid var(--line);width:min(380px,92vw);box-shadow:var(--shadow-lg);background:#fff;border-radius:24px;gap:16px;padding:32px;display:grid}.login-brand{font-size:24px;font-weight:700}.login-sub{color:var(--ink-500);margin:0;font-size:13px}.login-field{color:var(--ink-500);gap:8px;font-size:12px;display:grid}.login-field input{border:1px solid var(--line);background:var(--cloud-50);border-radius:14px;padding:12px 14px;font-size:14px}.login-error{color:#b42318;font-size:12px}.login-btn{width:100%}.login-hint{color:var(--ink-300);margin:0;font-size:12px}@media (width<=1200px){.stats-grid,.filters{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=900px){.admin-shell{grid-template-columns:1fr}.sidebar{flex-flow:wrap;align-items:center;min-height:auto;position:relative}.menu{flex-flow:wrap;width:100%}.topbar{flex-direction:column;align-items:flex-start}}