/* ==========================================================================
   Aurora UI —— 云音乐盒设计系统
   主色 #0080FF / 辅色 #FF1493 / 强调 #00FFFF
   底 #F8FAFC / 正文 #0F172A / 弱文 #475569 / 卡面 #FFFFFF
   圆角 14px / 按钮圆角 10px
   ========================================================================== */

:root{
  --blue:#0080FF;
  --blue-deep:#0059C8;      /* 按钮底：白字对比度 5.8:1 */
  --magenta:#FF1493;
  --cyan:#00FFFF;

  --bg:#F8FAFC;
  --ink:#0F172A;
  --muted:#475569;
  --card:#FFFFFF;

  --line:rgba(15,23,42,.09);
  --line-strong:rgba(15,23,42,.16);

  --radius:14px;
  --radius-btn:10px;

  --ring:0 0 0 3px rgba(0,128,255,.34);
  --shadow:0 1px 2px rgba(15,23,42,.04),0 10px 28px -14px rgba(0,89,200,.22);
  --shadow-lg:0 2px 4px rgba(15,23,42,.05),0 26px 64px -30px rgba(0,89,200,.32);

  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
::-webkit-scrollbar{width:9px;height:5px}
::-webkit-scrollbar-thumb{background:rgba(71,85,105,.28);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(71,85,105,.45)}
::-webkit-scrollbar-track{background:transparent}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  font-size:14px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* ---------- 极光光斑：全站唯一动效，8–12s 缓慢流动 ---------- */
.aurora-veil{
  position:fixed;
  inset:-25%;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(38% 42% at 12% 16%, rgba(0,128,255,.40), transparent 62%),
    radial-gradient(34% 38% at 88% 10%, rgba(255,20,147,.26), transparent 62%),
    radial-gradient(46% 48% at 58% 94%, rgba(0,255,255,.34), transparent 66%);
  background-size:200% 200%;
  filter:saturate(1.25);
  animation:aurora-flow 11s ease-in-out infinite alternate;
  opacity:1;
}
.aurora-veil.soft{opacity:.34}
@keyframes aurora-flow{
  0%{transform:translate3d(-1.5%,-1%,0) scale(1)}
  100%{transform:translate3d(1.5%,2%,0) scale(1.08)}
}
@media (prefers-reduced-motion:reduce){
  .aurora-veil{animation:none}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
}

/* ---------- 焦点可见 ---------- */
:focus{outline:none}
:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:2px;
  border-radius:4px;
}

/* ---------- 文字 ---------- */
h1,h2,h3,h4{font-weight:650;letter-spacing:-.012em;margin:0 0 .5em;color:var(--ink)}
h1{font-size:26px}
h2{font-size:20px}
h3{font-size:16.5px}
h4{font-size:14.5px}
p{margin:0 0 1em}
a{color:var(--blue-deep);text-decoration:none}
a:hover{text-decoration:underline}
small,.sub{color:var(--muted);font-size:12.5px}
code,kbd{font-family:var(--mono);font-size:12px;background:rgba(0,128,255,.09);color:#004C9E;padding:2px 6px;border-radius:5px}
hr{border:0;border-top:1px solid var(--line);margin:18px 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  min-height:38px;padding:0 16px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  background:var(--blue-deep);color:#fff;
  font-family:inherit;font-size:13.5px;font-weight:600;line-height:1;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background .16s ease,box-shadow .16s ease,transform .16s ease;
}
.btn:hover{background:#004AAB;text-decoration:none;color:#fff}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{box-shadow:var(--ring);outline:none}
.btn svg{width:15px;height:15px;flex:none}

.btn.gray{background:#EEF2F7;color:var(--ink);border-color:var(--line)}
.btn.gray:hover{background:#E4EAF2;color:var(--ink)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn.ghost:hover{background:rgba(0,128,255,.07);border-color:var(--blue);color:var(--blue-deep)}
.btn.red{background:#C2185B;color:#fff}
.btn.red:hover{background:#A2154D}
.btn.red.soft{background:rgba(194,24,91,.08);color:#A2154D;border-color:rgba(194,24,91,.26)}
.btn.red.soft:hover{background:rgba(194,24,91,.15);color:#8E1246}
.btn.green{background:#0B7A53;color:#fff}
.btn.green:hover{background:#096344}
.btn.sm{min-height:30px;padding:0 11px;font-size:12.5px;border-radius:8px}
.btn.block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* ---------- 卡片 ---------- */
.card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px 22px;
  box-shadow:var(--shadow);
  margin-bottom:16px;
}
.card > h3:first-child,.card > h4:first-child{margin-top:0}

/* ---------- 表单 ---------- */
label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:5px;font-weight:550}
input[type=text],input:not([type]),input[type=password],input[type=number],input[type=search],input[type=email],input[type=tel],select,textarea{
  font-family:inherit;font-size:13.5px;color:var(--ink);
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  padding:9px 12px;min-height:38px;width:100%;
  transition:border-color .15s ease,box-shadow .15s ease;
}
input::placeholder,textarea::placeholder{color:#94A3B8}
input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,128,255,.16);outline:none}
input[type=checkbox],input[type=radio]{width:16px;height:16px;min-height:0;accent-color:var(--blue-deep);vertical-align:-3px;margin-right:6px}
textarea{min-height:84px;resize:vertical;line-height:1.55}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#64748B 50%),linear-gradient(135deg,#64748B 50%,transparent 50%);background-position:calc(100% - 17px) 50%,calc(100% - 12px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:34px}

.row{display:flex;gap:16px;flex-wrap:wrap}
.row > div{flex:1 1 180px;min-width:0}

/* ---------- 表格 ---------- */
table{width:100%;border-collapse:separate;border-spacing:0;font-size:13.5px}
thead th,tr:first-child th{
  text-align:left;font-weight:600;font-size:12.5px;color:var(--muted);
  background:#F1F5F9;padding:10px 12px;border-bottom:1px solid var(--line);
  white-space:nowrap;
}
tr:first-child th:first-child{border-top-left-radius:10px}
tr:first-child th:last-child{border-top-right-radius:10px}
td{padding:12px;border-bottom:1px solid var(--line);vertical-align:middle;color:var(--ink)}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:background .12s ease}
tbody tr:hover{background:rgba(0,128,255,.035)}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 -4px}
td:last-child .btn{white-space:nowrap}
td .btn + form,td form + .btn{margin-left:4px}

/* ---------- 窄屏表格卡片化（给 table 加 .stackable，并给每个 td 写 data-label） ---------- */
@media (max-width:760px){
  .table-wrap{margin:0;overflow-x:auto}
  table.stackable{min-width:0}
  table.stackable thead{display:none}
  table.stackable,table.stackable tbody,table.stackable tr,table.stackable td{display:block;width:auto}
  table.stackable tr{
    background:#fff;border:1px solid var(--line);border-radius:12px;
    margin-bottom:10px;padding:4px 14px;box-shadow:var(--shadow);
  }
  table.stackable tbody tr:last-child{margin-bottom:0}
  table.stackable td{
    display:flex;align-items:center;gap:12px;
    padding:9px 0;border-bottom:1px dashed rgba(15,23,42,.08);
    font-size:13px;white-space:normal;
  }
  table.stackable td:last-child{border-bottom:0;padding:10px 0 8px;flex-wrap:wrap}
  table.stackable td::before{
    content:attr(data-label);flex:0 0 66px;
    font-size:12px;font-weight:650;color:var(--muted);
  }
  table.stackable td[data-label=""]::before,table.stackable td:not([data-label])::before{display:none}
  table.stackable td[data-label="操作"]{display:block}
  table.stackable td[data-label="操作"]::before{display:block;margin-bottom:7px}
  table.stackable td[data-label="操作"] .btn{margin:0 6px 6px 0}
  table.stackable td[data-label="操作"] form{display:inline-block;margin:0}
  table.stackable td code{word-break:break-all}
  table.stackable td .badge{margin-right:4px}
}
#trackTable{min-width:760px}

/* ---------- 统计卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));gap:14px;margin-bottom:18px}
.stat{
  position:relative;overflow:hidden;
  background:linear-gradient(140deg,#FFFFFF 52%,rgba(0,128,255,.05) 78%,rgba(255,20,147,.045) 100%);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow);
}
.stat .num{font-size:30px;font-weight:700;letter-spacing:-.03em;line-height:1.15;color:var(--ink)}
.stat .lbl{font-size:12.5px;color:var(--muted);margin-top:3px}

/* ---------- 徽标 ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;height:22px;padding:0 9px;border-radius:999px;font-size:11.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap;flex:none}
.badge.blue{background:rgba(0,128,255,.13);color:#004C9E}
.badge.magenta{background:rgba(255,20,147,.13);color:#A80E62}
.badge.gray{background:#EEF2F7;color:var(--muted)}
.badge.ok{background:rgba(11,122,83,.13);color:#0A6B49}
.badge.warn{background:rgba(194,24,91,.13);color:#A2154D}

/* ---------- 提示条 ---------- */
.msg-ok{background:rgba(11,122,83,.10);color:#0A6B49;border:1px solid rgba(11,122,83,.22);padding:10px 14px;border-radius:var(--radius-btn);margin-bottom:14px;font-size:13px}
.msg-err{background:rgba(194,24,91,.09);color:#A2154D;border:1px solid rgba(194,24,91,.22);padding:10px 14px;border-radius:var(--radius-btn);margin-bottom:14px;font-size:13px}
.note{background:#F1F5F9;border:1px solid var(--line);border-radius:var(--radius-btn);padding:12px 14px;font-size:12.5px;color:var(--muted)}

/* ---------- 代码块 ---------- */
.code-box{
  position:relative;
  background:#0B1220;color:#DCE6F5;
  border-radius:var(--radius-btn);padding:14px 16px;
  font-family:var(--mono);font-size:12.5px;line-height:1.65;
  white-space:pre-wrap;word-break:break-all;
  border:1px solid rgba(255,255,255,.06);
}
.code-box .copy-btn{position:absolute;top:8px;right:8px;min-height:28px;padding:0 10px;font-size:11.5px}

/* ---------- 空状态 ---------- */
.empty{text-align:center;padding:34px 16px;color:var(--muted)}
.empty svg{width:38px;height:38px;color:#B6C2D2;margin-bottom:10px}
.empty p{margin:0 0 10px;font-size:13px}

/* ==========================================================================
   后台外壳：侧栏 + 主区
   ========================================================================== */
html,body{overflow-x:clip}
.shell{position:relative;z-index:1;min-height:100vh;max-width:100%}
.side{
  position:fixed;left:0;top:0;bottom:0;width:216px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(18px) saturate(1.6);
  backdrop-filter:blur(18px) saturate(1.6);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  z-index:20;
}
.side .brand{
  display:flex;align-items:center;gap:9px;
  padding:18px 18px 14px;font-size:15px;font-weight:700;color:var(--ink);
  text-decoration:none;
}
.side .brand:hover{text-decoration:none}
.side .brand svg{width:22px;height:22px;color:var(--blue-deep);flex:none}
.side .brand .ver{font-size:10.5px;color:var(--muted);font-weight:600;background:#EEF2F7;border-radius:999px;padding:1px 7px;margin-left:2px}
.side nav{flex:1;display:flex;flex-direction:column;overflow-y:auto;padding:4px 10px 0}
.side a.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 11px;margin-bottom:2px;
  border-radius:var(--radius-btn);
  color:var(--muted);font-size:13.5px;font-weight:550;text-decoration:none;
  transition:background .14s ease,color .14s ease;
}
.side a.nav-item svg{width:17px;height:17px;flex:none;color:#8296AE;transition:color .14s ease}
.side a.nav-item:hover{background:rgba(0,128,255,.07);color:var(--ink);text-decoration:none}
.side a.nav-item:hover svg{color:var(--blue-deep)}
.side a.nav-item.on{
  background:linear-gradient(90deg,rgba(0,128,255,.20),rgba(255,20,147,.10));
  color:var(--blue-deep);font-weight:650;
  box-shadow:inset 3px 0 0 var(--blue-deep);
}
.side a.nav-item.on svg{color:var(--blue-deep)}
.side .group-title{padding:16px 12px 6px;font-size:11px;color:#8B9BAF;font-weight:650;letter-spacing:.06em}
.side .side-foot{padding:12px 14px 14px;margin-top:auto;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}

.main{margin-left:216px;padding:22px 26px 40px;min-height:100vh}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.topbar h1{font-size:21px;margin:0}
.topbar .who{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.avatar{
  width:30px;height:30px;border-radius:50%;flex:none;
  display:grid;place-items:center;font-size:12.5px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--magenta));
}

/* 手机端：顶栏（logo + 右上角菜单钮）+ 右侧抽屉导航 */
.nav-toggle{display:none}
.nav-mask{display:none}
@media (max-width:900px){
  .side{
    position:sticky;top:0;width:100%;height:54px;flex:none;
    flex-direction:row;flex-wrap:nowrap;align-items:center;justify-content:space-between;
    border-right:0;border-bottom:1px solid var(--line);
    overflow:visible;background:rgba(255,255,255,.97);
    /* 关键：backdrop-filter 会让 .side 变成 fixed 子元素的包含块，
       页面一滚动抽屉就跟着离开视口（只剩底部一条）。窄屏必须清掉。 */
    -webkit-backdrop-filter:none;backdrop-filter:none;will-change:auto;
    z-index:60;
  }
  .side .brand{padding:0 14px;height:54px;display:flex;align-items:center;gap:8px;flex:none}
  .side .brand svg{width:21px;height:21px}
  .side .brand .ver{font-size:10px}
  .nav-toggle{
    display:grid;place-content:center;gap:4px;width:40px;height:40px;
    margin-right:12px;flex:none;padding:0;cursor:pointer;
    border:1px solid var(--line);border-radius:11px;background:#fff;
    transition:background .14s,border-color .14s;
  }
  .nav-toggle:active{background:#EEF2F7}
  .nav-toggle span{display:block;width:16px;height:1.8px;border-radius:2px;background:var(--ink);transition:transform .24s cubic-bezier(.22,1,.36,1),opacity .16s}
  .side.open .nav-toggle span:nth-child(1){transform:translateY(5.8px) rotate(45deg)}
  .side.open .nav-toggle span:nth-child(2){opacity:0}
  .side.open .nav-toggle span:nth-child(3){transform:translateY(-5.8px) rotate(-45deg)}
  .side nav{
    position:fixed;top:0;right:0;height:100vh;height:100dvh;width:min(286px,84vw);
    display:flex;flex-direction:column;gap:2px;
    padding:66px 14px 20px;overflow-y:auto;overscroll-behavior:contain;
    background:#fff;box-shadow:-12px 0 36px rgba(15,23,42,.2);
    transform:translateX(101%);transition:transform .3s cubic-bezier(.22,1,.36,1);
    z-index:62;border-top:0;
  }
  .side.open nav{transform:translateX(0)}
  .side .group-title{display:block;padding:14px 12px 6px}
  .side a.nav-item{
    flex:none;white-space:nowrap;margin:0;
    padding:11px 12px;font-size:14px;gap:10px;
    background:transparent;border-radius:10px;box-shadow:none;
  }
  .side a.nav-item svg{width:17px;height:17px}
  .side a.nav-item.on{
    background:linear-gradient(90deg,rgba(0,128,255,.18),rgba(255,20,147,.09));
    box-shadow:inset 3px 0 0 var(--blue-deep);
  }
  .side .side-foot{display:block;margin-top:auto;padding:14px 12px 0;border-top:1px solid var(--line)}
  .nav-mask{
    display:block;position:fixed;inset:0;z-index:55;
    background:rgba(15,23,42,.45);
    opacity:0;pointer-events:none;transition:opacity .22s ease;
    touch-action:none;   /* 手指落在遮罩上滑动不再带动页面 */
  }
  body.nav-open,html.nav-open{overflow:hidden;overscroll-behavior:none}
  body.nav-open .nav-mask{opacity:1;pointer-events:auto}
  .main{margin-left:0;padding:14px 12px 34px;max-width:100%}
  .topbar{margin-bottom:14px}
  .topbar h1{font-size:18px}
  .topbar .who{font-size:12px}
}
@media (max-width:420px){
  .main{padding:12px 10px 30px}
  .topbar h1{font-size:17px}
}
@media (max-width:480px){
  .card{padding:16px 14px}
  .stat .num{font-size:25px}
  .btn{padding:0 13px}
}

/* ==========================================================================
   前台（门户 / 登录）
   ========================================================================== */
.site{position:relative;z-index:1}
.site-nav{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  max-width:1180px;margin:0 auto;padding:18px 24px;
}
.site-nav .brand{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:700;color:var(--ink);text-decoration:none}
.site-nav .brand svg{width:24px;height:24px;color:var(--blue-deep)}
.site-nav .links{display:flex;align-items:center;gap:8px;flex-wrap:wrap}

.hero{max-width:1180px;margin:0 auto;padding:56px 24px 12px;text-align:center}
.hero h1{font-size:clamp(28px,5vw,46px);line-height:1.18;letter-spacing:-.025em;margin-bottom:16px;color:var(--ink)}
@supports ((-webkit-background-clip:text) or (background-clip:text)){
  .hero h1{
    background-image:linear-gradient(96deg,#0F172A 0%,#004C9E 52%,#A2154D 100%);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
}
.hero .lead{font-size:16px;color:var(--muted);max-width:640px;margin:0 auto 26px;line-height:1.75}
.hero .cta{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.hero .cta .btn{min-height:44px;padding:0 22px;font-size:14.5px}

.metrics{
  display:flex;justify-content:center;gap:12px;flex-wrap:wrap;
  max-width:760px;margin:38px auto 0;
}
.metric{
  flex:1 1 150px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 18px;box-shadow:var(--shadow);text-align:left;
}
.metric b{display:block;font-size:26px;font-weight:700;letter-spacing:-.03em;line-height:1.2}
.metric span{font-size:12.5px;color:var(--muted)}

@media (max-width:620px){
  .metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:30px;align-items:stretch}
  .metric{padding:13px 12px}
  .metric b{font-size:21px}
  .metric span{font-size:11.5px;line-height:1.45}
  .hero{padding-top:36px}
  .section{padding:32px 20px}
}

.section{max-width:1180px;margin:0 auto;padding:44px 24px}
.section-head{max-width:640px;margin-bottom:22px}
.section-head h2{font-size:22px;margin-bottom:8px}
.section-head p{color:var(--muted);font-size:13.5px;margin:0}

.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.tile{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);
}
.tile .ico{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;margin-bottom:12px;
  background:linear-gradient(135deg,rgba(0,128,255,.20),rgba(255,20,147,.16) 62%,rgba(0,255,255,.18));
  color:var(--blue-deep);
}
.tile .ico svg{width:19px;height:19px}
.tile h3{font-size:15px;margin-bottom:6px}
.tile p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}

.site-foot{
  max-width:1180px;margin:0 auto;padding:26px 24px 40px;
  border-top:1px solid var(--line);color:var(--muted);font-size:12.5px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}

/* 登录/注册 */
.auth-wrap{position:relative;z-index:1;min-height:100vh;display:grid;place-items:center;padding:28px 18px}
.auth-card{
  width:100%;max-width:404px;background:var(--card);
  border:1px solid var(--line);border-radius:18px;padding:28px 26px;
  box-shadow:var(--shadow-lg);
}
.auth-card .brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;margin-bottom:4px}
.auth-card .brand svg{width:22px;height:22px;color:var(--blue-deep)}
.auth-card h1{font-size:22px;margin:14px 0 6px}
.auth-card .hint{font-size:13px;color:var(--muted);margin-bottom:20px}
.auth-card .field{margin-bottom:13px}
.auth-card .foot{margin-top:16px;font-size:12.5px;color:var(--muted);text-align:center}

/* ---- 站内试听内嵌框（控制台仪表盘） ---- */
.pv-frame{
  display:block;width:100%;max-width:600px;height:280px;margin:0 auto;
  border:1px solid var(--line-strong);border-radius:var(--radius);
  background:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.8);
}
@media(max-width:640px){
  .pv-frame{height:276px}
}