:root{
  --bg:#0f1115; --bg2:#171a21; --card:#1c2029; --line:#272c38;
  --txt:#e9edf5; --sub:#9aa3b2; --pri:#7c5cff; --pri2:#36d1c4;
  --ok:#22c55e; --warn:#f59e0b; --danger:#ef4444;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  background:linear-gradient(180deg,var(--bg),var(--bg2));color:var(--txt);
  min-height:100vh;min-height:100dvh;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
img{max-width:100%}
a,button,input,select,textarea{-webkit-tap-highlight-color:transparent}
body{-webkit-text-size-adjust:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}

/* 顶部导航 */
.nav{position:sticky;top:0;z-index:50;background:rgba(15,17,21,.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);padding:0 16px}
.nav-in{max-width:1080px;margin:0 auto;height:56px;display:flex;align-items:center;gap:18px}
.logo{font-weight:800;font-size:18px;background:linear-gradient(90deg,var(--pri),var(--pri2));-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap}
.nav .links{display:flex;gap:16px;flex:1}
.nav .links a{color:var(--sub);font-size:14px;padding:6px 2px}
.nav .links a.on{color:var(--txt);font-weight:600}
.nav .user{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--sub)}

/* 手机端汉堡菜单（桌面隐藏） */
.hamb{display:none;align-items:center;justify-content:center;width:40px;height:40px;margin-left:auto;border:none;background:transparent;color:var(--txt);font-size:22px;border-radius:10px}
.hamb:active{background:var(--card)}
.m-nav{display:none;flex-direction:column;background:var(--bg2);border-bottom:1px solid var(--line);padding:6px 14px 12px}
.m-nav a{padding:12px 10px;border-radius:10px;color:var(--sub);font-size:15px}
.m-nav a.on{color:var(--txt);font-weight:600;background:var(--card)}
.m-nav .m-nav-u{display:flex;gap:10px;margin-top:8px;padding-top:10px;border-top:1px solid var(--line)}
.m-nav .m-nav-u .btn{flex:1;text-align:center}

/* 详情页手机端迷你播放条（桌面隐藏） */
.mini{display:none;position:fixed;left:0;right:0;bottom:0;z-index:120;align-items:center;gap:12px;background:rgba(20,23,30,.97);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:8px 14px;padding-bottom:calc(8px + env(safe-area-inset-bottom))}
.mini .mc{width:40px;height:40px;border-radius:8px;flex-shrink:0;overflow:hidden;background:#222;display:flex;align-items:center;justify-content:center;color:var(--pri);font-size:18px}
.mini .mc img{width:100%;height:100%;object-fit:cover}
.mini .mi{flex:1;min-width:0}
.mini .mi .mt{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mini .mi .ma{font-size:11px;color:var(--sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mini .mbtn{width:44px;height:44px;flex-shrink:0;border-radius:50%;border:none;background:var(--pri);color:#fff;font-size:18px}
.btn{border:none;border-radius:10px;padding:9px 16px;font-size:14px;font-weight:600;background:var(--pri);color:#fff;transition:.15s}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}
.btn.pri2{background:linear-gradient(90deg,var(--pri),var(--pri2));color:#fff}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* 搜索 */
.search{display:flex;gap:10px;margin:22px 0}
.search input{flex:1;background:var(--card);border:1px solid var(--line);color:var(--txt);border-radius:12px;padding:13px 16px;font-size:15px;outline:none}
.search input:focus{border-color:var(--pri)}

/* 区块 */
.section{margin:26px 0}
.section h2{font-size:17px;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.section h2 .tag{font-size:11px;color:var(--pri2);border:1px solid var(--pri2);border-radius:999px;padding:1px 8px}

/* 歌曲网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.15s;cursor:pointer}
.card:hover{transform:translateY(-3px);border-color:var(--pri)}
.card .cv{aspect-ratio:1/1;background:#222;position:relative;display:flex;align-items:center;justify-content:center;font-size:34px;color:var(--pri)}
.card .cv img{width:100%;height:100%;object-fit:cover}
.card .play-i{position:absolute;right:10px;bottom:10px;width:34px;height:34px;border-radius:50%;background:var(--pri);display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px}
.card .meta{padding:10px 12px}
.card .meta .ti{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card .meta .ar{font-size:12px;color:var(--sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:3px}

/* 列表 */
.list{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.row{display:flex;align-items:center;gap:12px;padding:12px 14px;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:none}
.row .idx{width:24px;color:var(--sub);font-size:13px;text-align:center}
.row .cv2{width:46px;height:46px;border-radius:10px;background:#222;flex-shrink:0;object-fit:cover;display:flex;align-items:center;justify-content:center;color:var(--pri);font-size:18px;overflow:hidden}
.row .cv2 img{width:100%;height:100%;object-fit:cover}
.row .info{flex:1;min-width:0}
.row .info .ti{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .info .ar{font-size:12px;color:var(--sub);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .acts{display:flex;gap:8px;align-items:center;color:var(--sub);font-size:13px}
.row .acts .vip{font-size:10px;color:var(--warn);border:1px solid var(--warn);border-radius:6px;padding:1px 5px}

/* 详情页 */
.detail{display:grid;grid-template-columns:300px 1fr;gap:28px;margin-top:24px}
.detail .cover{aspect-ratio:1/1;border-radius:18px;overflow:hidden;background:#222;display:flex;align-items:center;justify-content:center;font-size:60px;color:var(--pri)}
.detail .cover img{width:100%;height:100%;object-fit:cover}
.detail h1{font-size:24px;margin:0 0 6px}
.detail .artist{color:var(--sub);margin-bottom:18px}
.detail .ctrls{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
.player{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-top:16px}
.player .bar{height:6px;background:#2a2f3a;border-radius:999px;cursor:pointer;position:relative}
.player .bar .fill{height:100%;background:linear-gradient(90deg,var(--pri),var(--pri2));border-radius:999px;width:0}
.player .time{display:flex;justify-content:space-between;font-size:12px;color:var(--sub);margin-top:8px}
.player .pp{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.player .pp .big{width:46px;height:46px;border-radius:50%;background:var(--pri);border:none;color:#fff;font-size:18px}

/* 歌词 */
.lyric{max-height:360px;overflow:auto;padding:10px 4px;line-height:2;font-size:15px;color:var(--sub)}
.lyric .ln{transition:.2s;padding:2px 6px;border-radius:6px}
.lyric .ln.on{color:var(--txt);font-weight:700;background:rgba(124,92,255,.12)}

/* 表单 */
.box{max-width:420px;margin:60px auto;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px}
.box h1{font-size:20px;margin:0 0 18px;text-align:center}
.fld{margin-bottom:14px}
.fld label{display:block;font-size:13px;color:var(--sub);margin-bottom:6px}
.fld input,.fld textarea,.fld select{width:100%;background:#11141b;border:1px solid var(--line);color:var(--txt);border-radius:10px;padding:12px;font-size:14px;outline:none}
.fld input:focus,.fld textarea:focus{border-color:var(--pri)}
.code-row{display:flex;gap:10px}
.code-row input{flex:1}
.code-row button{white-space:nowrap}
.hint{font-size:12px;color:var(--sub);margin-top:6px}
.err{color:var(--danger);font-size:13px;margin:8px 0}
.ok{color:var(--ok);font-size:13px;margin:8px 0}
.center{text-align:center}
.muted{color:var(--sub)}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:#000d2a;border:1px solid var(--pri);color:#fff;padding:12px 20px;border-radius:12px;z-index:999;display:none;max-width:90vw}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:200;padding:16px}
.modal .m{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;max-width:420px;width:100%}
.modal .m h3{margin:0 0 12px}
.contact-line{display:flex;gap:8px;align-items:center;margin:8px 0;font-size:14px}
.contact-line b{color:var(--sub);width:64px;display:inline-block}

/* 后台通用 */
.admin .nav{background:rgba(10,12,16,.95)}
.admin .layout{display:grid;grid-template-columns:210px 1fr;min-height:calc(100vh - 56px);min-height:calc(100dvh - 56px)}
.admin .layout.no-side{grid-template-columns:1fr}
.admin .side{background:var(--bg2);border-right:1px solid var(--line);padding:14px}
.admin .side a{display:block;padding:11px 14px;border-radius:10px;color:var(--sub);font-size:14px;margin-bottom:4px}
.admin .side a.on{background:var(--pri);color:#fff}
.admin .main{padding:22px}
.admin .panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:18px}
.admin table{width:100%;border-collapse:collapse;font-size:14px}
.admin th,.admin td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.admin th{color:var(--sub);font-weight:600;font-size:13px}
.admin .toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}

/* ===== 手机 / 平板适配 ===== */
@media (max-width:768px){
  /* 导航：隐藏横向链接与用户区，改用汉堡菜单 */
  .nav{padding-top:env(safe-area-inset-top);padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}
  .nav .links{display:none}
  .nav .user{display:none}
  .hamb{display:flex}
  .m-nav.open{display:flex}

  /* 全局留白与触控区 */
  .wrap{padding-left:14px;padding-right:14px;padding-bottom:90px}
  .btn{min-height:42px}
  .btn.sm{min-height:36px}

  /* 搜索 */
  .search{margin:16px 0;gap:8px}
  .search input{padding:14px;border-radius:12px;font-size:16px}
  .search .btn{padding:0 18px;font-size:15px}

  /* 区块 */
  .section{margin:20px 0}
  .section h2{font-size:16px}

  /* 网格改为两列 */
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .card .meta{padding:8px 10px}
  .card .meta .ti{font-size:13px}
  .card .meta .ar{font-size:11px}

  /* 列表行 */
  .row{padding:10px 12px;gap:10px}
  .row .cv2{width:44px;height:44px}
  .row .info .ti{font-size:14px}
  .row .info .ar{font-size:12px}
  .row .acts{font-size:12px;gap:6px}

  /* 详情页 */
  .detail{margin-top:18px;gap:16px}
  .detail .cover{max-width:200px;margin:0 auto}
  .detail h1{font-size:20px;margin-top:0}
  .detail .artist{margin-bottom:12px}
  .detail .ctrls .btn{width:100%;text-align:center}
  .player{padding:14px}
  .player .pp .big{width:50px;height:50px;font-size:20px}
  .lyric{max-height:320px;font-size:14px;line-height:1.9}

  /* 表单卡片 */
  .box{margin:36px auto;padding:22px 18px}
  .fld input,.fld textarea,.fld select{padding:13px;font-size:15px}

  /* 后台 */
  .admin .layout{grid-template-columns:1fr}
  .admin .side{display:flex;overflow:auto;gap:6px;padding:10px}
  .admin .side a{margin:0;white-space:nowrap}
  .admin .main{padding:14px}
  .admin .panel{padding:14px}
  .admin table{min-width:680px}      /* 触发横向滚动而非挤压 */
  .admin .toolbar{margin-bottom:12px}
  .admin .toolbar h2{font-size:15px}

  /* 详情页底部常驻迷你播放条（仅手机显示） */
  .mini{display:flex}
}

@media (max-width:480px){
  .nav-in{height:52px}
  .logo{font-size:16px}
  .grid{gap:10px}
  .card .meta .ti{font-size:12px}
  .search input{padding:13px 12px}
  .box{margin:24px auto;padding:20px 16px;border-radius:14px}
  .detail .cover{max-width:160px}
  .detail h1{font-size:18px}
  .lyric{font-size:14px;line-height:1.85;max-height:300px}
  .row .acts .vip{display:none}
  .admin table{min-width:640px}
  .admin .main{padding:12px}
}