:root{
  --bg:#0e1116; --card:#161b22; --line:#232c38; --fg:#e6edf3;
  --dim:#8b98a9; --acc:#3b82f6; --acc2:#2563eb; --ok:#22c55e;
  --warn:#f59e0b; --bad:#ef4444; --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--fg);
  font:15px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
}
a{color:#8ab4f8; text-decoration:none}
a:hover{text-decoration:underline}

/* ── header ── */
.top{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:14px 20px; border-bottom:1px solid var(--line); position:sticky; top:0;
  background:rgba(14,17,22,.86); backdrop-filter:blur(8px); z-index:20;
}
.brand{display:inline-flex; align-items:center; gap:8px; color:var(--fg); font-weight:650; letter-spacing:.2px}
.brand svg{color:var(--acc)}
.top nav{display:flex; gap:18px; font-size:14px}
.top nav a{color:var(--dim)}
.top nav a:hover{color:var(--fg)}

main{max-width:940px; margin:0 auto; padding:40px 20px 64px}
h1{font-size:clamp(26px,4.4vw,40px); line-height:1.2; margin:0 0 12px; letter-spacing:-.4px}
.sub{color:var(--dim); font-size:16px; margin:0 0 26px; max-width:62ch}
.sub b{color:var(--fg)}

.card{
  background:var(--card); border:1px solid var(--line); border-radius:14px;
  padding:22px; margin:0 0 22px;
}

/* ── 拖放区 ── */
.drop{
  border:2px dashed var(--line); border-radius:12px; padding:44px 20px; text-align:center;
  cursor:pointer; transition:border-color .15s, background .15s; background:#12171f;
}
.drop:hover,.drop:focus-visible{border-color:var(--acc); outline:none}
.drop.over{border-color:var(--acc); background:#152036}
.drop-ico{font-size:26px; color:var(--acc); margin-bottom:10px}
.drop-main{font-size:17px; font-weight:600}
.drop-sub{color:var(--dim); font-size:13px; margin-top:4px}

/* ── 文件面板 ── */
.panel{margin-top:18px}
.file-row{display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:14px}
.fname{font-weight:600; overflow:hidden; text-overflow:ellipsis; max-width:46ch; white-space:nowrap}
.fmeta{color:var(--dim); font-size:13px; font-family:var(--mono)}

.adv{border-top:1px solid var(--line); padding-top:14px; margin-bottom:16px}
.adv summary{cursor:pointer; color:var(--dim); font-size:14px; user-select:none}
.adv summary:hover{color:var(--fg)}
.adv-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:14px; margin-top:14px}
.fld{display:flex; flex-direction:column; gap:6px; font-size:13px; color:var(--dim)}
.fld input,.fld select{
  background:#0d1218; color:var(--fg); border:1px solid var(--line);
  border-radius:8px; padding:8px 10px; font:inherit; font-size:14px;
}
.fld input:focus,.fld select:focus{outline:none; border-color:var(--acc)}

.actions{display:flex; align-items:center; gap:14px; flex-wrap:wrap}
.model-note{color:var(--dim); font-size:13px}

/* ── 按钮 ── */
button{font:inherit; cursor:pointer; border:0; border-radius:9px; padding:11px 20px; font-weight:600; transition:filter .15s}
button:hover:not(:disabled){filter:brightness(1.12)}
button:disabled{opacity:.5; cursor:not-allowed}
.primary{background:var(--acc2); color:#fff}
.ghost{background:#253040; color:var(--fg)}
.sm{padding:8px 14px; font-size:13px}
.xs{padding:5px 10px; font-size:12px}

/* ── 进度 ── */
.progress{margin-top:18px}
.bar{height:8px; background:#0d1218; border-radius:99px; overflow:hidden; border:1px solid var(--line)}
.bar i{display:block; height:100%; width:0; background:linear-gradient(90deg,var(--acc),#60a5fa); transition:width .3s}
.bar.indet i{width:35%!important; animation:slide 1.1s ease-in-out infinite}
@keyframes slide{0%{margin-left:-35%}100%{margin-left:100%}}
.prow{display:flex; justify-content:space-between; gap:12px; margin-top:8px; font-size:13px}
.stage{font-weight:600}
.eta{color:var(--dim); font-family:var(--mono)}
.detail{color:var(--dim); font-size:12.5px; margin-top:4px; white-space:pre-wrap; font-family:var(--mono)}

.err{
  margin-top:16px; background:#3b1416; border:1px solid #7f1d1d; color:#fecaca;
  padding:12px 14px; border-radius:10px; font-size:13.5px; white-space:pre-wrap;
}

/* ── 结果 ── */
.res-head{display:flex; justify-content:space-between; align-items:flex-start; gap:16px; flex-wrap:wrap; margin-bottom:14px}
.res-head h2{margin:0 0 4px; font-size:20px}
.res-meta{color:var(--dim); font-size:13px; font-family:var(--mono)}
.res-actions{display:flex; gap:8px; flex-wrap:wrap}

.shift-row{display:flex; align-items:center; gap:8px; flex-wrap:wrap; font-size:13px; color:var(--dim); margin-bottom:14px}
.shift-row .mono{font-family:var(--mono); color:var(--fg); min-width:64px; text-align:center}

.editor-wrap{max-height:420px; overflow:auto; border:1px solid var(--line); border-radius:10px; background:#0d1218}
.cue-list{display:flex; flex-direction:column}
.cue{display:grid; grid-template-columns:74px 1fr auto; gap:10px; align-items:start; padding:10px 12px; border-bottom:1px solid #1b222c}
.cue:last-child{border-bottom:0}
.cue.time{background:rgba(59,130,246,.12)}
.cue .ts{font-family:var(--mono); font-size:11.5px; color:var(--dim); padding-top:3px; cursor:pointer; user-select:none}
.cue .ts:hover{color:var(--acc)}
.cue textarea{
  background:transparent; border:1px solid transparent; color:var(--fg); font:inherit; font-size:14px;
  width:100%; resize:vertical; min-height:38px; padding:4px 6px; border-radius:6px;
}
.cue textarea:hover{border-color:var(--line)}
.cue textarea:focus{outline:none; border-color:var(--acc); background:#0b0f15}
.cue .del{background:transparent; color:var(--dim); padding:2px 8px; font-size:16px; line-height:1}
.cue .del:hover{color:var(--bad)}

#player{width:100%; max-height:340px; background:#000; border-radius:10px; display:block}

/* ── prose ── */
.prose{max-width:70ch}
.prose h2{font-size:22px; margin:0 0 14px}
.prose h3{font-size:15.5px; margin:22px 0 6px}
.prose p,.prose li{color:var(--dim)}
.prose b,.prose li b{color:var(--fg)}
.prose ol{padding-left:20px}
.note{
  border-left:3px solid var(--acc); background:#12171f; padding:12px 14px;
  border-radius:0 8px 8px 0; color:var(--dim); font-size:14px;
}

.foot{
  border-top:1px solid var(--line); padding:24px 20px 40px; text-align:center;
  color:var(--dim); font-size:13px;
}
.foot div{display:flex; gap:18px; justify-content:center; margin-bottom:8px}

@media(max-width:600px){
  main{padding:26px 14px 48px}
  .card{padding:16px}
  .drop{padding:32px 14px}
  .top nav{display:none}
  .res-actions{width:100%}
}