:root{
  --ink:#0f172a;--muted:#64748b;--line:#e6eaf2;--brand:#2563eb;--brand2:#7c3aed;
  --soft:#f6f8fc;--ok:#16a34a;--warn:#dc2626;
}
*{box-sizing:border-box}
body{margin:0;background:var(--soft);color:var(--ink);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--brand)}
.hidden{display:none!important}

.topbar{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.tb-inner{max-width:1320px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);text-decoration:none;font-size:17px}
.brand .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800}
.brand small{font-weight:500;color:var(--muted);font-size:12px;margin-left:2px}
.tb-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.badge{font-size:12px;font-weight:700;padding:5px 10px;border-radius:999px}
.badge.free{background:#eef2ff;color:#4338ca}
.badge.pro{background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid transparent;border-radius:10px;padding:10px 16px;font:inherit;font-weight:600;cursor:pointer;transition:.15s;text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 6px 18px rgba(37,99,235,.25)}
.btn-primary:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#c7d2fe;color:var(--brand)}
.btn.sm{padding:7px 12px;font-size:13px}

.layout{max-width:1320px;margin:0 auto;padding:22px 20px 60px;display:grid;grid-template-columns:330px minmax(0,1fr);gap:20px;align-items:start}
.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:6px 18px 18px;position:sticky;top:84px}
.group{padding:14px 0;border-bottom:1px dashed #eef2f8}
.group:last-child{border-bottom:0}
.group h2{font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:#94a3b8;margin:0 0 10px}
.group .body{margin-top:10px}
.presets{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 11px;font-size:12.5px;cursor:pointer;color:#475569}
.chip:hover{border-color:#c7d2fe;color:var(--brand)}
.row{display:flex;align-items:center;gap:8px;margin-top:8px}
.row label{font-size:13px;color:var(--muted);min-width:52px}
.row input[type=number]{width:78px}
input,select{font:inherit;border:1px solid var(--line);border-radius:9px;padding:8px 10px;background:#fff;color:var(--ink);outline:none;max-width:100%}
input:focus,select:focus{border-color:#93c5fd;box-shadow:0 0 0 3px rgba(37,99,235,.1)}
input[type=range]{padding:0;flex:1}
input[type=color]{padding:2px;width:46px;height:36px}
select{width:100%}
.hint{color:#94a3b8;font-size:12.5px;margin:8px 0 0}
.switch{display:flex;align-items:center;gap:9px;font-size:14px;cursor:pointer;user-select:none}
.switch input{display:none}
.switch span{width:38px;height:22px;border-radius:999px;background:#e2e8f0;position:relative;transition:.2s;flex:0 0 auto}
.switch span::after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch input:checked + span{background:linear-gradient(135deg,var(--brand),var(--brand2))}
.switch input:checked + span::after{transform:translateX(16px)}
.switch.sm{font-size:13px;color:var(--muted);margin-top:10px}
.seg{display:flex;background:#f1f5f9;border-radius:10px;padding:3px;gap:3px}
.seg button{flex:1;border:0;background:transparent;border-radius:8px;padding:7px 0;font:inherit;font-size:13px;color:#475569;cursor:pointer}
.seg button.on{background:#fff;color:var(--ink);font-weight:650;box-shadow:0 1px 4px rgba(15,23,42,.08)}
.file-inline{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}

.work{min-width:0}
.drop{background:#fff;border:2px dashed #cbd5e1;border-radius:16px;padding:34px 20px;text-align:center;transition:.15s;cursor:pointer}
.drop:hover,.drop.over{border-color:var(--brand);background:#f8faff}
.drop svg{color:#94a3b8;margin-bottom:8px}
.drop p{margin:4px 0}
.drop .link{color:var(--brand);font-weight:600}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:16px 0 12px;flex-wrap:wrap}
.tb-left{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:14px}
.list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;display:flex;gap:12px;align-items:flex-start}
.card .thumb{width:64px;height:64px;border-radius:10px;object-fit:cover;background:#f1f5f9;flex:0 0 auto}
.card .meta{min-width:0;flex:1}
.card .name{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card .sub{font-size:12px;color:#94a3b8;margin-top:3px}
.card .state{font-size:12px;margin-top:6px;display:inline-block;padding:2px 8px;border-radius:999px;background:#f1f5f9;color:#64748b}
.card .state.ok{background:#dcfce7;color:#15803d}
.card .state.err{background:#fee2e2;color:#b91c1c}
.card .state.busy{background:#e0e7ff;color:#4338ca}
.card .dl{margin-left:auto;align-self:center;font-size:12.5px;color:var(--brand);text-decoration:none;font-weight:600;white-space:nowrap}
.empty{color:#94a3b8;text-align:center;padding:40px 0}

.modal{position:fixed;inset:0;background:rgba(15,23,42,.5);display:grid;place-items:center;z-index:60;padding:20px}
.modal-card{background:#fff;border-radius:18px;padding:26px;width:min(420px,100%);box-shadow:0 30px 80px rgba(15,23,42,.3)}
.modal-card h3{margin:0 0 8px;font-size:19px}
.modal-card input{width:100%;margin-top:12px}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}
.msg{font-size:13px;margin:8px 0 0;min-height:18px}
.msg.err{color:var(--warn)}
.msg.ok{color:var(--ok)}

.foot{max-width:1320px;margin:0 auto;padding:0 20px 40px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#94a3b8;font-size:12.5px}
.foot a{color:#94a3b8}

@media (max-width:980px){
  .layout{grid-template-columns:1fr}
  .panel{position:static}
  .brand small{display:none}
}

.conc{font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:6px}
.conc select{width:auto;padding:6px 8px;border-radius:8px}
.progress-wrap{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin:0 0 14px}
.progress-wrap .bar{height:8px;border-radius:999px;background:#eef2f8;overflow:hidden}
.progress-wrap .bar>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:width .18s ease}
.progress-meta{display:flex;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted);margin-top:8px}
.progress-meta #progressFile{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60%}

.pro-chip{display:inline-block;margin-left:6px;padding:1px 6px;border-radius:999px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-size:10px;font-weight:800;letter-spacing:.04em;vertical-align:1px}
.tier-hint{background:#f8faff;border:1px solid #e3ecff;color:#475569;border-radius:12px;padding:10px 14px;font-size:13px;margin-bottom:12px}
.tier-hint a{font-weight:600}

.lang-btn{border:1px solid var(--line);background:#fff;color:#475569;font:inherit;font-size:12.5px;font-weight:700;padding:5px 10px;border-radius:8px;cursor:pointer}
.lang-btn:hover{border-color:#c7d2fe;color:var(--brand)}
.group em{font-style:normal}