:root{--bg:#f3f4f6;--side:#111827;--side2:#1f2937;--main:#6d28d9;--main2:#7c3aed;--card:#fff;--line:#e5e7eb;--text:#111827;--muted:#6b7280;--ok:#059669;--bad:#dc2626}
*{box-sizing:border-box}
html,body{margin:0;height:100%;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--main);text-decoration:none}
.login-wrap{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(180deg,#111827,#4c1d95)}
.login-card{width:100%;max-width:380px;background:#fff;border-radius:16px;padding:28px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.login-card h1{margin:0 0 6px;font-size:22px}
.login-card p{margin:0 0 18px;color:var(--muted)}
.layout{display:flex;min-height:100%}
.side{width:220px;background:var(--side);color:#fff;padding:18px 12px;flex-shrink:0}
.side h1{font-size:16px;margin:0 12px 18px}
.side button{width:100%;text-align:left;border:0;background:transparent;color:#d1d5db;padding:12px 12px;border-radius:10px;font:inherit;cursor:pointer;margin-bottom:6px}
.side button.on,.side button:hover{background:var(--side2);color:#fff}
.main{flex:1;padding:22px;min-width:0}
.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.top h2{margin:0;font-size:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin:0 0 14px}
label{display:block;font-size:13px;color:var(--muted);margin:8px 0 6px}
input,textarea,select{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;background:#fff}
textarea{min-height:90px;resize:vertical}
.row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;align-items:center}
button,.btn{border:0;border-radius:10px;padding:10px 14px;font:inherit;font-weight:700;cursor:pointer;background:var(--main);color:#fff}
button.ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
button.danger{background:#fff;color:var(--bad);border:1px solid #fecaca}
button.big{width:100%;padding:14px}
.hint{font-size:13px;color:var(--muted);margin:8px 0}
.ok{color:var(--ok)}.bad{color:var(--bad)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-bottom:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px}
.stat b{display:block;font-size:22px;margin-top:4px}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:middle}
.tag{display:inline-block;border-radius:999px;padding:2px 8px;font-size:12px}
.tag.on{background:#d1fae5;color:#065f46}.tag.off{background:#fee2e2;color:#991b1b}
.tab{display:none}.tab.on{display:block}
.k{width:100%;min-width:240px;font-family:Consolas,ui-monospace,monospace;font-size:12px}
.front{max-width:560px;margin:40px auto;padding:0 16px}
.front .card{box-shadow:0 10px 30px rgba(17,24,39,.06)}
ol{margin:0;padding-left:18px;line-height:1.8;color:#374151}
.muted{color:var(--muted);font-size:13px}

.tabs{display:flex;gap:8px;margin:12px 0}
.tabbtn{flex:1;background:#fff;color:var(--text);border:1px solid var(--line);font-weight:650}
.tabbtn.on{background:var(--main);color:#fff;border-color:var(--main)}
.viewwrap{position:relative;margin:10px 0;background:#111;border-radius:12px;overflow:hidden;min-height:280px}
.viewwrap img{display:block;width:100%;min-height:240px;background:#111}
.viewmask{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;background:#111a;font-weight:700}
.okbox{text-align:center;padding:28px 16px}
.okbox .check{width:64px;height:64px;border-radius:50%;background:var(--ok);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:32px;margin-bottom:10px}
.okbox b{display:block;font-size:18px;margin-bottom:8px}

a.btn{display:inline-block;text-align:center;text-decoration:none}
.front{max-width:420px}

.captcha-row{display:flex;gap:8px;align-items:center}
.captcha-row input{flex:1;letter-spacing:2px;text-transform:uppercase}
.captcha-img{height:44px;width:120px;border-radius:10px;border:1px solid var(--line);cursor:pointer;background:#f3f4f6;flex-shrink:0}

.urlcell{max-width:460px;word-break:break-all;font-family:Consolas,ui-monospace,monospace;font-size:12px;color:#374151}
#invText{min-height:140px}