:root{--bg: #10141c;--panel: #1a2130;--panel-2: #232c40;--text: #e8ecf4;--muted: #8b94a7;--accent: #4f8ef7;--accent-soft: rgba(79, 142, 247, .16);--danger: #e5534b;--radius: 10px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Segoe UI,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text)}#app{min-height:100vh;display:flex;flex-direction:column}main{flex:1;padding:20px;max-width:1100px;width:100%;margin:0 auto}.topbar{display:flex;align-items:center;gap:18px;padding:12px 24px;background:var(--panel);border-bottom:1px solid #2b3550}.brand{font-weight:700}.topbar nav{display:flex;gap:4px}.topbar nav a{color:var(--muted);text-decoration:none;padding:6px 14px;border-radius:999px}.topbar nav a.router-link-active{color:var(--text);background:var(--accent-soft)}.spacer{flex:1}.who{color:var(--muted);font-size:14px}.card{background:var(--panel);border:1px solid #2b3550;border-radius:var(--radius);padding:18px}.card h1,.card h2{margin:0 0 14px;font-size:18px}button{font:inherit;border:none;border-radius:8px;padding:8px 16px;background:var(--accent);color:#fff;cursor:pointer}button:hover{filter:brightness(1.1)}button:disabled{opacity:.5;cursor:default}button.ghost{background:transparent;color:var(--muted);border:1px solid #2b3550}button.danger{background:transparent;color:var(--danger);border:1px solid var(--danger);padding:4px 10px}input,select{font:inherit;background:var(--panel-2);border:1px solid #2b3550;border-radius:8px;color:var(--text);padding:9px 12px}input:focus{outline:2px solid var(--accent);border-color:transparent}.muted{color:var(--muted)}.center{text-align:center;padding:60px 0}.error{color:var(--danger);margin:8px 0 0}.flash{padding:10px 14px;border-radius:8px;margin:0 0 14px}.flash.ok{background:#3fb95026;color:#3fb950}.flash.error{background:#e5534b26;color:var(--danger)}.login-wrap{display:flex;justify-content:center;padding-top:12vh}.login-card{width:340px;display:flex;flex-direction:column;gap:12px}.login-card h1{text-align:center;font-size:20px}.player-layout{display:grid;grid-template-columns:260px 1fr;gap:16px;align-items:start}.track-list{display:flex;flex-direction:column;gap:6px}.track-item{background:transparent;color:var(--text);text-align:left;padding:10px 12px;border-radius:8px}.track-item:hover{background:var(--panel-2)}.track-item.active{background:var(--accent-soft);color:var(--accent)}.player-main{display:flex;flex-direction:column;min-height:70vh}.subtitle-list{flex:1;overflow-y:auto;max-height:55vh;padding-right:6px}.sub-line{display:flex;align-items:baseline;gap:12px;padding:9px 12px;border-radius:8px;cursor:pointer;line-height:1.55}.sub-line:hover{background:var(--panel-2)}.sub-line.active{background:var(--accent-soft)}.sub-line.active .sub-text{color:var(--accent);font-weight:600}.sub-line.looping{outline:1px dashed var(--accent)}.sub-time{color:var(--muted);font-size:12px;min-width:42px;font-variant-numeric:tabular-nums}.sub-text{flex:1;white-space:pre-line}.loop-btn{background:transparent;color:var(--muted);padding:0 6px;font-size:15px;opacity:0}.sub-line:hover .loop-btn,.sub-line.looping .loop-btn{opacity:1}.controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid #2b3550;padding-top:14px;margin-top:12px}.play-btn{width:44px;height:44px;border-radius:50%;font-size:16px}.time{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}.progress{flex:1;min-width:120px;height:8px;background:var(--panel-2);border-radius:999px;cursor:pointer;overflow:hidden}.progress-bar{height:100%;background:var(--accent);border-radius:999px}.rate-group{display:flex;gap:4px}.rate-btn{background:var(--panel-2);color:var(--muted);padding:5px 9px;font-size:12px}.rate-btn.active{background:var(--accent);color:#fff}.loop-tag{background:var(--accent-soft);color:var(--accent);font-size:13px;padding:5px 10px;border-radius:999px;cursor:pointer}.chat-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#06090fa6;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}.line-btn{background:transparent;color:var(--muted);padding:0 5px;font-size:14px;opacity:0}.sub-line:hover .line-btn,.sub-line.looping .line-btn,.line-btn.shown{opacity:1}.practice-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:2px 0 6px 54px;padding:8px 12px;background:var(--panel-2);border-radius:8px;border:1px solid #2b3550}.pb-btn{background:var(--panel);color:var(--text);border:1px solid #2b3550;padding:5px 12px;font-size:13px}.pb-btn:disabled{opacity:.4}.pb-btn.rec.on{background:var(--danger);border-color:var(--danger);color:#fff;animation:pulse 1.2s ease-in-out infinite}.mic-error{font-size:12px;margin:0}.chat-panel{display:flex;flex-direction:column;width:min(760px,100%);height:min(82vh,900px);box-shadow:0 20px 60px #00000080}.chat-head{display:flex;justify-content:space-between;align-items:center;font-weight:600;margin-bottom:10px}button.small{padding:2px 10px}.chat-sentence{margin:0 0 12px;padding:8px 12px;border-left:3px solid var(--accent);background:var(--panel-2);border-radius:0 8px 8px 0;font-style:italic;color:var(--text);white-space:pre-line}.chat-messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:10px;padding-right:4px}.chat-msg{max-width:92%;padding:8px 12px;border-radius:10px;font-size:14px;line-height:1.6}.chat-msg.user{align-self:flex-end;background:var(--accent);color:#fff}.chat-msg.assistant{align-self:flex-start;background:var(--panel-2)}.typing{animation:pulse 1.2s ease-in-out infinite}@keyframes pulse{50%{opacity:.4}}.chat-input{display:flex;gap:8px;margin-top:12px}.chat-input input{flex:1}.md p{margin:0 0 8px}.md p:last-child{margin-bottom:0}.md h1,.md h2,.md h3{font-size:15px;margin:10px 0 6px}.md ul,.md ol{margin:0 0 8px;padding-left:20px}.md code{background:#4f8ef726;color:#9cc0ff;padding:1px 5px;border-radius:4px;font-size:13px}.md pre{background:var(--bg);padding:10px;border-radius:8px;overflow-x:auto}.md pre code{background:transparent;padding:0}.md blockquote{margin:0 0 8px;padding-left:10px;border-left:3px solid #2b3550;color:var(--muted)}.admin-layout{display:flex;flex-direction:column;gap:16px}.upload-form,.user-form{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.upload-form label{color:var(--muted);font-size:14px;display:flex;align-items:center;gap:8px}table{width:100%;border-collapse:collapse;margin-top:8px}th{text-align:left;color:var(--muted);font-weight:500;font-size:13px}th,td{padding:8px 10px;border-bottom:1px solid #2b3550}@media(max-width:980px){.player-layout{grid-template-columns:1fr}.chat-overlay{padding:10px}.chat-panel{height:90vh}}