:root {
  --ink: #172033;
  --muted: #718096;
  --line: #e5e9f0;
  --surface: #ffffff;
  --canvas: #f4f6fa;
  --nav: #111827;
  --accent: #3b82f6;
  --accent-dark: #2563eb;
  --accent-soft: #eaf2ff;
  --mint: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 12px 30px rgba(23,32,51,.08);
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--ink); background: var(--canvas); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.eyebrow { margin: 0 0 5px; color: #8a97a9; font-size: 11px; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }

.login-shell { min-height: 100vh; display: grid; grid-template-columns: minmax(380px, 46%) 1fr; background: #fff; }
.login-card { align-self: center; width: min(440px, calc(100% - 64px)); margin: auto; padding: 44px; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); }
.brand { display: flex; gap: 10px; align-items: center; font-weight: 780; letter-spacing: -.02em; color: #fff; }
.brand-login { color: var(--ink); margin-bottom: 44px; font-size: 19px; }
.brand-mark { display: grid; place-items: center; width: 31px; height: 31px; border-radius: 10px; color: #fff; background: linear-gradient(135deg,#60a5fa,#2563eb); box-shadow: 0 7px 16px rgba(37,99,235,.3); }
.login-card h1 { margin: 8px 0; font-size: 34px; letter-spacing: -.04em; }
.login-note { margin: 24px 0 0; font-size: 12px; color: #98a2b3; text-align: center; }
.login-visual { position: relative; overflow: hidden; margin: 18px; border-radius: 28px; background: radial-gradient(circle at 20% 10%,#325c9a 0,transparent 35%), linear-gradient(145deg,#111827,#16223a 52%,#1e3a5f); }
.login-visual:after { content:""; position:absolute; inset:0; opacity:.18; background-image: linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px); background-size: 32px 32px; }
.orb { position:absolute; border-radius:50%; filter:blur(2px); }
.orb-one { width:340px;height:340px;right:-80px;top:-80px;background:rgba(59,130,246,.34); }
.orb-two { width:220px;height:220px;left:12%;bottom:5%;background:rgba(16,185,129,.16); }
.visual-card { position:absolute; z-index:1; left:16%; top:28%; width:300px; padding:26px; border:1px solid rgba(255,255,255,.14); border-radius:22px; color:white; background:rgba(255,255,255,.08); backdrop-filter: blur(18px); transform:rotate(-3deg); box-shadow:0 28px 60px rgba(0,0,0,.24); }
.visual-card.small { left:auto;right:12%;top:55%;width:250px;transform:rotate(5deg); }
.visual-card span { color:#a9bdd9;font-size:12px; }.visual-card strong { display:block;margin:12px 0 22px;font-size:24px; }.visual-card i { display:block;width:72%;height:8px;border-radius:20px;background:linear-gradient(90deg,#60a5fa 65%,rgba(255,255,255,.12) 65%); }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 236px 1fr; }
.sidebar { position: sticky; top: 0; height: 100vh; padding: 24px 16px; background: var(--nav); display:flex; flex-direction:column; }
.sidebar .brand { padding: 0 10px 30px; font-size: 17px; }
nav a { display:flex;align-items:center;gap:12px;margin:4px 0;padding:11px 13px;border-radius:10px;color:#9ca9bc;text-decoration:none;font-size:14px;transition:.18s ease; }
nav a:hover { color:#fff;background:rgba(255,255,255,.055); }
nav a.active { color:#fff;background:#22304a;box-shadow:inset 3px 0 0 #60a5fa; }
.nav-icon { display:grid;place-items:center;width:20px;height:20px;font-size:17px;color:#8ba3c2; }
.nav-label { margin:26px 13px 8px;color:#59677c;font-size:10px;letter-spacing:.12em;text-transform:uppercase;font-weight:750; }
.sidebar-foot { margin-top:auto;padding:14px 13px;border-top:1px solid rgba(255,255,255,.07);color:#7e8ca2;font-size:12px;display:flex;gap:9px;align-items:center; }
.status-dot { width:8px;height:8px;border-radius:50%;background:#34d399;box-shadow:0 0 0 4px rgba(52,211,153,.1); }
main { min-width: 0; }
.topbar { height:82px;padding:0 32px;display:flex;align-items:center;gap:16px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10; }
.topbar h2 { margin:0;font-size:20px;letter-spacing:-.025em; }.top-actions { margin-left:auto;display:flex;align-items:center;gap:12px; }.admin-chip { padding:8px 12px;border-radius:10px;background:#f2f5f9;font-size:13px;font-weight:650; }
.content { padding: 28px 32px 50px; max-width: 1580px; margin: auto; }
.menu-btn { display:none; }

.hero { display:flex;justify-content:space-between;align-items:center;gap:30px;padding:26px 28px;margin-bottom:22px;border-radius:18px;background:linear-gradient(120deg,#17243c,#21385c);color:#fff;overflow:hidden;position:relative; }
.hero:after { content:"";position:absolute;width:260px;height:260px;border-radius:50%;right:-50px;top:-130px;background:rgba(96,165,250,.17); }
.hero h3 { margin:0 0 7px;font-size:22px; }.hero p { margin:0;color:#9fb0ca;font-size:13px; }.hero .btn { position:relative;z-index:1; }
.stats { display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px; }
.stat-card,.panel { background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:0 3px 12px rgba(23,32,51,.025); }
.stat-card { padding:21px; }.stat-top { display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px; }.stat-card strong { display:block;margin-top:12px;font-size:28px;letter-spacing:-.04em; }.stat-badge { width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--accent-soft);color:var(--accent);font-size:16px; }
.panel { padding:20px; }.panel-head { display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:17px; }.panel-head h3 { margin:0;font-size:16px; }.panel-head p { margin:5px 0 0;color:var(--muted);font-size:12px; }.toolbar { display:flex;gap:9px;flex-wrap:wrap;align-items:center; }
.grid-two { display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.7fr);gap:18px; }

.btn { border:0;border-radius:9px;padding:9px 14px;color:#475467;background:#eef1f5;font-size:13px;font-weight:680;transition:.16s ease; }
.btn:hover { transform:translateY(-1px);filter:brightness(.98); }.btn.primary { color:white;background:var(--accent);box-shadow:0 6px 14px rgba(59,130,246,.18); }.btn.primary:hover { background:var(--accent-dark); }.btn.danger { color:#c83e3e;background:#fff0f0; }.btn.ghost { border:1px solid var(--line);background:#fff; }.btn.wide { width:100%;padding:12px; }.btn.small { padding:6px 9px;font-size:12px; }.btn.success { color:#087b55;background:#e6f8f1; }
.icon-btn { border:0;background:transparent;width:36px;height:36px;border-radius:9px;font-size:20px;color:#667085; }.icon-btn:hover { background:#f1f4f8; }
.link-btn { border:0;background:none;padding:3px;color:var(--accent);font-size:12px; }

.table-wrap { overflow:auto; }.table { width:100%;border-collapse:collapse;min-width:780px; }.table th { padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);color:#8994a5;font-size:11px;font-weight:720;text-transform:uppercase;letter-spacing:.05em; }.table td { padding:14px 12px;border-bottom:1px solid #edf0f4;font-size:13px;vertical-align:middle; }.table tr:last-child td { border-bottom:0; }.table tr:hover td { background:#fafbfc; }.cell-main { font-weight:680; }.cell-sub { margin-top:4px;color:var(--muted);font-size:11px; }.truncate { max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#607087;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px; }
.badge { display:inline-flex;align-items:center;gap:5px;padding:5px 8px;border-radius:99px;background:#f1f4f8;color:#667085;font-size:11px;font-weight:680;white-space:nowrap; }.badge.ok { background:#e8f8f1;color:#087b55; }.badge.bad { background:#fff0f0;color:#c83e3e; }.badge.warn { background:#fff6df;color:#a96700; }.badge.blue { background:var(--accent-soft);color:var(--accent-dark); }
.dot { width:6px;height:6px;border-radius:50%;background:currentColor; }
.actions { display:flex;gap:5px;justify-content:flex-end;white-space:nowrap; }.empty { padding:48px 20px;text-align:center;color:var(--muted); }.empty strong { display:block;color:#475467;margin-bottom:7px; }
.progress { height:7px;margin-top:8px;border-radius:20px;background:#edf1f5;overflow:hidden; }.progress i { display:block;height:100%;border-radius:20px;background:linear-gradient(90deg,#60a5fa,#2563eb); }
.notice { padding:14px 16px;border-radius:12px;background:#eef5ff;color:#3f5e88;font-size:12px;line-height:1.65;border:1px solid #dce9fb; }.notice.warning { background:#fff9e9;border-color:#fae8b4;color:#825f0d; }

.form-stack { display:grid;gap:16px;margin-top:26px; }.form-grid { display:grid;grid-template-columns:1fr 1fr;gap:15px; }.form-grid .span-2 { grid-column:1/-1; }
label { display:grid;gap:7px;color:#475467;font-size:12px;font-weight:650; }
input, textarea, select { width:100%;border:1px solid #d9dfe8;border-radius:9px;padding:10px 11px;background:#fff;color:var(--ink);outline:0;transition:.16s; }
input:focus,textarea:focus,select:focus { border-color:#73a8f9;box-shadow:0 0 0 3px rgba(59,130,246,.1); }
textarea { min-height:110px;resize:vertical;font-family:inherit;line-height:1.5; }.code-area { min-height:300px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px; }
.checkbox-row { display:flex;flex-wrap:wrap;gap:8px;max-height:185px;overflow:auto;padding:10px;border:1px solid var(--line);border-radius:10px; }.check-chip { display:flex;align-items:center;gap:7px;padding:8px 10px;border-radius:9px;background:#f5f7fa;font-weight:550; }.check-chip input { width:auto; }
.switch-line { display:flex;align-items:center;gap:9px; }.switch-line input { width:auto; }
.form-actions { display:flex;justify-content:flex-end;gap:9px;padding-top:4px; }
.help { margin:0;color:#8994a5;font-size:11px;line-height:1.5; }

.modal-backdrop { position:fixed;z-index:100;inset:0;display:grid;place-items:center;padding:24px;background:rgba(8,15,29,.58);backdrop-filter:blur(4px); }
.modal-card { width:min(760px,100%);max-height:calc(100vh - 48px);overflow:auto;padding:23px;border-radius:18px;background:#fff;box-shadow:0 30px 80px rgba(0,0,0,.3); }.modal-head { display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px; }.modal-head h3 { margin:0;font-size:20px; }.modal-head .icon-btn { margin-top:-6px; }
.link-list { display:grid;gap:10px; }.link-row { display:grid;grid-template-columns:150px 1fr auto;gap:9px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:11px; }.link-row code { overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#52627a;font-size:11px; }.link-row strong { font-size:12px; }.link-actions{display:flex;gap:6px}.qr-preview{display:grid;grid-template-columns:280px 1fr;gap:22px;align-items:center;margin-top:16px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#f8fafc}.qr-preview img{display:block;width:260px;max-width:100%;height:auto;border-radius:10px;background:#fff}.qr-preview h4{margin:0 0 8px}.qr-preview p{font-size:12px;line-height:1.65;word-break:break-all}
.toast { position:fixed;z-index:200;right:24px;bottom:24px;max-width:360px;padding:12px 16px;border-radius:11px;background:#182235;color:#fff;box-shadow:var(--shadow);font-size:13px;opacity:0;transform:translateY(10px);pointer-events:none;transition:.22s; }.toast.show { opacity:1;transform:translateY(0); }.toast.error { background:#a92f3a; }
.activity { display:grid;gap:2px; }.activity-item { display:grid;grid-template-columns:9px 1fr auto;align-items:center;gap:11px;padding:11px 4px;border-bottom:1px solid #edf0f4;font-size:12px; }.activity-item:last-child{border:0}.activity-item p{margin:0}.activity-item small{color:var(--muted)}
.mono-card { padding:14px;border-radius:11px;background:#121a29;color:#b9c7da;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.7;white-space:pre-wrap;overflow:auto; }

@media (max-width: 980px) {
  .stats { grid-template-columns:1fr 1fr; }.grid-two { grid-template-columns:1fr; }.app-shell { grid-template-columns:1fr; }.sidebar { position:fixed;z-index:30;left:-250px;width:236px;transition:.2s; }.sidebar.open { left:0;box-shadow:20px 0 50px rgba(0,0,0,.22); }.menu-btn { display:block; }.content { padding:22px 18px 40px; }.topbar { padding:0 18px; }.admin-chip { display:none; }
}
@media (max-width: 720px) {
  .login-shell { grid-template-columns:1fr; }.login-visual { display:none; }.login-card { width:calc(100% - 32px);padding:28px; }.stats { grid-template-columns:1fr 1fr;gap:10px; }.stat-card { padding:16px; }.stat-card strong{font-size:23px}.hero{align-items:flex-start;flex-direction:column}.form-grid{grid-template-columns:1fr}.form-grid .span-2{grid-column:auto}.link-row{grid-template-columns:1fr auto}.link-row code{grid-column:1/-1;grid-row:2}.qr-preview{grid-template-columns:1fr;text-align:center}.qr-preview img{margin:auto}.modal-backdrop{padding:10px}.modal-card{padding:18px;max-height:calc(100vh - 20px)}
}