:root{
  --bg1:#0b1020; --bg2:#0d1330;
  --surface:#151c34; --surface2:#19203c; --surface3:#212a4a;
  --border:#28324f; --border2:#36426310;
  --bd:#2a3552; --bd2:#36446a;
  --text:#eaeefb; --muted:#a6b0cf; --muted2:#7c86a8;
  --brand:#5b82f7; --brand2:#9a73ff;
  --grad:linear-gradient(135deg,#4f7cf8,#9a73ff);
  --ok:#34d399; --warn:#fbbf24; --bad:#f87171;
  --r:16px; --r-lg:20px; --r-sm:11px;
  --shadow:0 22px 60px rgba(0,0,0,.42);
  --shadow-sm:0 6px 22px rgba(0,0,0,.30);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:auto}
body{
  margin:0; min-height:100vh; color:var(--text);
  font-family:ui-sans-serif,system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:
    radial-gradient(1100px 540px at 50% -8%, rgba(79,124,248,.20), transparent 60%),
    radial-gradient(820px 480px at 90% 6%, rgba(154,115,255,.16), transparent 55%),
    linear-gradient(180deg,var(--bg1),var(--bg2));
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  padding:24px 18px 56px;
}
body.meeting{height:100vh;padding:0;overflow:hidden}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:min(1080px,100%);margin:0 auto;display:flex;flex-direction:column;gap:18px}
.wrap-narrow{width:min(440px,100%)}

.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;letter-spacing:.2px;color:var(--text)}
.brand:hover{text-decoration:none}
.brand img,.brand .mk{width:34px;height:34px;border-radius:10px;display:block;box-shadow:0 6px 18px rgba(79,124,248,.4)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.who{display:flex;align-items:center;gap:10px}
.avatar-chip{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:#fff;background:var(--grad)}

h1{margin:0 0 6px;font-size:25px;letter-spacing:.2px;color:var(--text);font-weight:800}
h2{margin:0;font-size:18px;font-weight:700}
.muted{color:var(--muted);font-size:13.5px;line-height:1.7}
.muted2{color:var(--muted2);font-size:12px;line-height:1.6}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.between{justify-content:space-between}
.spacer{flex:1}
.mt{margin-top:16px}

.card{background:var(--surface);border:1px solid var(--bd);border-radius:var(--r-lg);box-shadow:var(--shadow)}
.inner{padding:24px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:12px;
  border:1px solid var(--bd2);background:var(--surface2);
  color:var(--text);font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .12s ease,border-color .12s ease,box-shadow .12s ease,filter .12s ease,background .12s ease;
}
.btn:hover{transform:translateY(-1px);border-color:var(--brand);text-decoration:none}
.btn.primary{border:0;color:#fff;font-weight:700;background:var(--grad);box-shadow:0 12px 28px rgba(79,124,248,.34)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.bad{border-color:rgba(248,113,113,.45);color:#fecaca;background:rgba(248,113,113,.12)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn.ghost:hover{color:var(--text);background:var(--surface2)}
.btn.lg{height:50px;font-size:15px;padding:0 22px}
.btn.block{width:100%}
.btn svg{width:18px;height:18px}
.btn:disabled{opacity:.55;cursor:not-allowed}

.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}
.tile-a{
  display:flex;flex-direction:column;gap:12px;padding:20px;border-radius:var(--r);
  border:1px solid var(--bd);background:var(--surface2);cursor:pointer;color:var(--text);text-align:left;
  transition:transform .14s ease,border-color .14s ease,box-shadow .14s ease;
}
.tile-a:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:0 18px 40px rgba(0,0,0,.4);text-decoration:none}
.tile-a .ic{width:50px;height:50px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--grad);color:#fff}
.tile-a .ic.alt{background:rgba(91,130,247,.18);color:#9fb6ff}
.tile-a .ic.warm{background:rgba(251,191,36,.16);color:var(--warn)}
.tile-a .ic svg{width:25px;height:25px}
.tile-a .t{font-size:15.5px;font-weight:700}
.tile-a .s{font-size:12.5px;color:var(--muted)}

.field{display:flex;flex-direction:column;gap:7px;margin-bottom:15px}
.field label{font-size:13px;color:var(--text);font-weight:600}
.field.check{flex-direction:row;align-items:center;gap:9px}
.field.check input{width:18px;height:18px;accent-color:var(--brand)}
.field.check label{font-weight:500;color:var(--muted)}
input[type=text],input[type=password],input[type=number],input[type=datetime-local],select,textarea{
  height:46px;padding:0 14px;border-radius:12px;border:1px solid var(--bd2);
  background:rgba(10,14,28,.55);color:var(--text);font-size:15px;width:100%;
}
textarea{height:auto;min-height:62px;padding:11px 14px;line-height:1.5;resize:vertical;font-family:inherit}
input::placeholder,textarea::placeholder{color:var(--muted2)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,124,248,.18)}
.code-input{letter-spacing:3px;font-size:20px;text-align:center;font-family:ui-monospace,Menlo,Consolas,monospace}

.notice{padding:13px 15px;border-radius:12px;font-size:13.5px;line-height:1.6;border:1px solid var(--bd);background:var(--surface2);color:var(--text)}
.notice.error{border-color:rgba(248,113,113,.45);color:#fecaca;background:rgba(248,113,113,.1)}
.notice.ok{border-color:rgba(52,211,153,.4);color:#bbf7d8;background:rgba(52,211,153,.1)}

.mlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;margin-top:16px}
.m-item{display:flex;flex-direction:column;gap:10px;padding:16px;border:1px solid var(--bd);border-radius:var(--r);background:var(--surface2)}
.m-item .m-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.m-title{font-size:15.5px;font-weight:700;line-height:1.35}
.code{font-family:ui-monospace,Menlo,Consolas,monospace;letter-spacing:1.5px;color:var(--text)}
.pill{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid var(--bd2);background:var(--surface3);color:var(--muted)}
.pill.live{border-color:rgba(52,211,153,.45);color:#bbf7d8;background:rgba(52,211,153,.12)}
.pill.live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 9px var(--ok)}
.pill.scheduled{border-color:rgba(251,191,36,.4);color:#fde6a8;background:rgba(251,191,36,.1)}

/* ===================== 会议室 ===================== */
.room{position:fixed;inset:0;display:flex;flex-direction:column;background:radial-gradient(1200px 700px at 50% -10%,#152038,#070b16)}
.rtop{display:flex;align-items:center;gap:12px;padding:12px 16px;background:rgba(8,11,20,.72);border-bottom:1px solid var(--bd);backdrop-filter:blur(10px)}
.rtop .brand{font-size:15px}
.rtop .brand img{width:26px;height:26px}
.rtitle{font-weight:700;font-size:15px;max-width:40vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.codebtn{display:inline-flex;align-items:center;gap:7px;padding:6px 11px;border-radius:10px;border:1px solid var(--bd2);background:rgba(255,255,255,.05);color:var(--muted);font-size:12.5px;cursor:pointer}
.codebtn:hover{border-color:var(--brand);color:var(--text)}
.codebtn .code{font-size:13px}
.codebtn svg{width:15px;height:15px}
.rtimer{font-variant-numeric:tabular-nums;color:var(--muted2);font-size:13px}

.rmain{flex:1;min-height:0;display:flex}
.stage{flex:1;min-height:0;padding:14px;overflow:auto}
.vgrid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));align-content:center;height:100%}
.vgrid.n1{grid-template-columns:minmax(0,1fr);max-width:1000px;margin:0 auto}
.tile{position:relative;aspect-ratio:16/9;background:linear-gradient(160deg,#1b264a,#0f1730);border:1px solid var(--bd);border-radius:16px;overflow:hidden;box-shadow:0 10px 28px rgba(0,0,0,.35)}
.tile video{width:100%;height:100%;object-fit:cover;display:block;background:#0d1018}
.tile .nm{position:absolute;left:10px;bottom:10px;display:flex;align-items:center;gap:6px;padding:4px 10px;border-radius:9px;font-size:12.5px;font-weight:600;background:rgba(8,10,20,.62);color:#fff;backdrop-filter:blur(6px);max-width:80%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tile .mic-off{position:absolute;right:10px;top:10px;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(248,113,113,.92);color:#fff}
.tile .mic-off svg{width:15px;height:15px}
.tile.speaking{border-color:var(--brand);box-shadow:0 0 0 2px var(--brand),0 0 26px rgba(79,124,248,.5)}
.tile .av{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.tile .av .ball{width:96px;height:96px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:38px;font-weight:800;color:#fff;background:var(--grad);box-shadow:0 10px 30px rgba(79,124,248,.42)}

.controls{display:flex;gap:8px;align-items:center;justify-content:center;padding:14px;background:rgba(8,11,20,.82);border-top:1px solid var(--bd);backdrop-filter:blur(10px);flex-wrap:wrap}
.cbtn{display:flex;flex-direction:column;align-items:center;gap:5px;min-width:62px;padding:8px 6px;border-radius:14px;border:0;background:transparent;color:var(--text);cursor:pointer;font-size:11.5px;font-weight:600}
.cbtn .cic{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.1);transition:background .12s ease,transform .12s ease}
.cbtn:hover .cic{background:rgba(255,255,255,.18);transform:translateY(-1px)}
.cbtn .cic svg{width:21px;height:21px}
.cbtn.off .cic{background:var(--bad);color:#fff}
.cbtn.active .cic{background:rgba(79,124,248,.9);color:#fff}
.cbtn.leave .cic{background:var(--bad);color:#fff}
.cbtn.leave:hover .cic{filter:brightness(1.08)}

.panel{width:330px;max-width:86vw;display:flex;flex-direction:column;background:rgba(9,13,24,.96);border-left:1px solid var(--bd)}
.panel-h{display:flex;align-items:center;justify-content:space-between;padding:13px 15px;border-bottom:1px solid var(--bd);font-weight:700;font-size:14px}
.panel-x{width:30px;height:30px;border-radius:8px;border:1px solid var(--bd2);background:transparent;color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center}
.panel-x svg{width:16px;height:16px}
.panel-x:hover{color:var(--text);border-color:var(--brand)}
.panel-body{flex:1;overflow:auto;padding:12px 14px;display:flex;flex-direction:column;gap:9px}
.chat-msg{font-size:13.5px;line-height:1.5}
.chat-msg b{color:#9fb6ff}
.chat-msg.me b{color:#bda3ff}
.chat-form{display:flex;gap:8px;padding:11px;border-top:1px solid var(--bd)}
.plist-item{display:flex;align-items:center;gap:10px;padding:8px 6px;border-radius:10px}
.plist-item:hover{background:rgba(255,255,255,.05)}
.plist-item .pa{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;color:#fff;background:var(--grad);flex:none}
.plist-item .pn{flex:1;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.plist-item .tag{font-size:11px;color:var(--muted2)}
.plist-item .kick{margin-left:auto;flex:none;font-size:12px;font-weight:600;padding:5px 11px;border-radius:8px;border:1px solid rgba(248,113,113,.4);background:rgba(248,113,113,.12);color:#fecaca;cursor:pointer}
.plist-item .kick:hover{background:rgba(248,113,113,.22)}

.prejoin{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.pj-card{width:min(900px,100%);display:flex;flex-wrap:wrap;align-items:stretch;overflow:hidden}
.pj-prev{position:relative;background:#0d1018;flex:1 1 360px;min-width:min(100%,300px);min-height:340px}
.pj-prev video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
.pj-prev .av{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.pj-prev .ball{width:96px;height:96px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:38px;font-weight:800;color:#fff;background:var(--grad)}
.pj-prev .hintbar{position:absolute;left:0;right:0;bottom:0;display:flex;gap:10px;justify-content:center;padding:14px}
.pj-prev .rbtn{width:48px;height:48px;border-radius:50%;border:0;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.18);color:#fff;cursor:pointer}
.pj-prev .rbtn.off{background:var(--bad)}
.pj-prev .rbtn svg{width:20px;height:20px}
.pj-side{flex:1 1 340px;min-width:min(100%,300px);padding:26px;display:flex;flex-direction:column;justify-content:center;gap:6px}
@media (max-width:680px){.pj-prev{flex-basis:100%;min-height:220px}.pj-side{flex-basis:100%}}

.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);z-index:50;background:#111a33;border:1px solid var(--bd2);color:#fff;padding:11px 16px;border-radius:12px;font-size:13.5px;box-shadow:var(--shadow);max-width:82vw;text-align:center}

/* 等候室·主持人放行栏 */
.knockbar{position:absolute;left:50%;top:12px;transform:translateX(-50%);z-index:25;width:min(520px,92%);max-height:42vh;overflow:auto;background:rgba(17,26,51,.97);border:1px solid var(--bd2);border-radius:14px;box-shadow:var(--shadow);padding:12px 14px}
.knockbar .knock-t{font-size:13px;font-weight:700;color:var(--warn);margin-bottom:6px}
.knock-row{display:flex;align-items:center;gap:8px;padding:8px 0;border-top:1px solid var(--bd)}
.knock-nm{flex:1;font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.knockbar .btn{height:34px;padding:0 14px;font-size:13px}

@media (max-width:560px){
  .inner{padding:18px}h1{font-size:22px}
  body.meeting{height:auto;min-height:100vh;overflow-y:auto}
  .prejoin{min-height:100dvh}
  .room{bottom:auto;height:100dvh}
  .rtop{padding:10px 12px;gap:8px}
  .rtop .brand{display:none}
  .rtitle{max-width:48vw}
  .stage{padding:10px}
  .vgrid{grid-template-columns:minmax(0,1fr)}
  .rmain{position:relative}
  .panel{position:absolute;top:0;right:0;bottom:0;width:min(340px,92vw);max-width:none;z-index:30;box-shadow:-14px 0 44px rgba(0,0,0,.6)}
  .controls{gap:4px;padding:10px 6px}
  .cbtn{min-width:0;flex:1 1 18%;padding:7px 2px;font-size:11px;gap:4px}
  .cbtn .cic{width:42px;height:42px}
  .cbtn .cic svg{width:19px;height:19px}
}