:root{
  --bg:#fbf7f0;
  --surface:#ffffff;
  --surface-2:#faf5ec;
  --line:#efe4d2;
  --line-strong:#e2d5bb;
  --text:#2c2419;
  --text-2:#6d614c;
  --text-3:#9c8f79;
  --accent:#cb9433;          /* 金：填充 / 边框 / 图标 */
  --accent-2:#e0ac4e;        /* 金：渐变亮端 */
  --accent-ink:#8a5f14;      /* 金：白底上的品牌文字 */
  --ink:#4a3512;             /* 金底上的文字 / 图标 */
  --accent-soft:#fbf1de;     /* 浅金底 */
  --gold-grad:linear-gradient(135deg,#d9a03c,#c08b2c);
  --bub-me:linear-gradient(135deg,#f8e7bf,#f0d49a);
  --ok:#2e9e6b;
  --warn:#e0772f;
  --err:#d8553f;
  --radius:14px;
  --radius-lg:20px;
  --shadow-s:0 1px 2px rgba(74,52,18,.05),0 1px 3px rgba(74,52,18,.04);
  --shadow-m:0 4px 12px rgba(74,52,18,.07),0 1px 3px rgba(74,52,18,.05);
  --shadow-l:0 18px 50px rgba(74,52,18,.16);
  --ease:cubic-bezier(.32,.72,0,1);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;overflow:hidden;
}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit;font-size:inherit;color:inherit}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#ddcdae;border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:#c9b894}
::-webkit-scrollbar-track{background:transparent}

/* 动画 */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes popIn{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}
@keyframes slideUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes slideL{from{opacity:0;transform:translateX(-12px)}to{opacity:1;transform:none}}
@keyframes slideR{from{opacity:0;transform:translateX(12px)}to{opacity:1;transform:none}}
@keyframes pulseRing{0%{box-shadow:0 0 0 0 rgba(46,158,107,.5)}70%{box-shadow:0 0 0 8px rgba(46,158,107,0)}100%{box-shadow:0 0 0 0 rgba(46,158,107,0)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes bar{0%,100%{transform:scaleY(.35)}50%{transform:scaleY(1)}}
@keyframes shake{10%,90%{transform:translateX(-1px)}20%,80%{transform:translateX(2px)}30%,50%,70%{transform:translateX(-3px)}40%,60%{transform:translateX(3px)}}

/* 入口面板 */
#gate{
  position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;
  background:
    radial-gradient(900px 500px at 12% 8%,#fdecc4 0%,transparent 60%),
    radial-gradient(700px 500px at 88% 92%,#fae3c9 0%,transparent 60%),
    var(--bg);
  animation:fadeIn .4s var(--ease);
}
#gate.hide{opacity:0;pointer-events:none;transition:opacity .45s var(--ease)}
.gate-card{
  width:100%;max-width:420px;background:var(--surface);border:1px solid var(--line);
  border-radius:24px;box-shadow:var(--shadow-l);padding:32px 28px;animation:popIn .5s var(--ease);
}
.brand{display:flex;align-items:center;gap:11px;margin-bottom:22px}
.brand .dot{
  width:38px;height:38px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:grid;place-items:center;box-shadow:0 6px 16px rgba(192,139,44,.32);
}
.brand .dot svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.brand h1{margin:0;font-size:17px;font-weight:650;letter-spacing:-.2px}
.brand p{margin:1px 0 0;font-size:12px;color:var(--text-3)}
.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--text-2);margin-bottom:7px}
.field .ipt{
  width:100%;padding:12px 14px;border:1.5px solid var(--line-strong);border-radius:12px;background:var(--surface-2);
  outline:none;transition:border-color .2s,background .2s,box-shadow .2s;
}
.field .ipt:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px var(--accent-soft)}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:8px;background:var(--surface-2);padding:5px;border-radius:13px;border:1px solid var(--line);margin-bottom:16px}
.seg button{padding:9px 8px;border-radius:9px;font-size:13px;font-weight:600;color:var(--text-2);transition:all .25s var(--ease)}
.seg button.on{background:#fff;color:var(--accent-ink);box-shadow:var(--shadow-s)}
.btn{
  width:100%;padding:13px;border-radius:12px;font-size:14.5px;font-weight:650;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--ink);
  box-shadow:0 6px 18px rgba(192,139,44,.32);transition:transform .18s var(--ease),box-shadow .18s,filter .18s;
}
.btn:hover{transform:translateY(-1.5px);box-shadow:0 10px 24px rgba(192,139,44,.36)}
.btn:active{transform:translateY(0) scale(.99)}
.btn[disabled]{filter:grayscale(.5) opacity(.6);pointer-events:none}
.btn .ld{display:none;width:14px;height:14px;border:2px solid rgba(74,53,18,.35);border-top-color:var(--ink);border-radius:50%;animation:spin .7s linear infinite;margin-right:7px;vertical-align:-2px}
.btn.busy .ld{display:inline-block}
.tip{margin:16px 0 0;font-size:11.5px;color:var(--text-3);line-height:1.7}
.gate-err{display:none;margin-top:14px;padding:10px 12px;border-radius:10px;font-size:12.5px;background:#fdf1ec;color:#a3392a;border:1px solid #f6d9cf;animation:shake .4s}
.gate-err.show{display:block}

/* 主体 */
#app{display:none;height:100%;flex-direction:column}
#app.on{display:flex;animation:fadeIn .5s var(--ease)}
header{
  flex:none;height:58px;display:flex;align-items:center;gap:10px;padding:0 14px;
  background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);z-index:20;
}
.hd-logo{width:30px;height:30px;border-radius:9px;flex:none;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center}
.hd-logo svg{width:16px;height:16px;stroke:var(--ink);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.hd-title{font-weight:650;font-size:14.5px;white-space:nowrap}
.room-chip{display:flex;align-items:center;gap:8px;padding:6px 8px 6px 11px;background:var(--surface-2);border:1px solid var(--line);border-radius:99px;min-width:0}
.room-chip .lb{font-size:11px;color:var(--text-3);flex:none}
.room-chip .id{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:150px}
.icon-btn{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex:none;color:var(--text-2);transition:background .18s,color .18s,transform .18s var(--ease)}
.icon-btn:hover{background:var(--accent-soft);color:var(--accent-ink)}
.icon-btn:active{transform:scale(.9)}
.icon-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.spacer{flex:1}
.status{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-2);padding:5px 10px;background:var(--surface-2);border:1px solid var(--line);border-radius:99px;white-space:nowrap}
.status .led{width:7px;height:7px;border-radius:50%;background:var(--text-3);flex:none;transition:background .3s}
.status.ok .led{background:var(--ok);animation:pulseRing 2.4s infinite}
.status.warn .led{background:var(--warn)}
.status.err .led{background:var(--err)}
main{flex:1;display:flex;min-height:0;overflow:hidden}

/* 侧栏 */
aside{width:224px;flex:none;background:var(--surface);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.aside-hd{flex:none;padding:14px 16px 10px;display:flex;align-items:center;justify-content:space-between}
.aside-hd h2{margin:0;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3)}
.count-pill{font-size:11px;font-weight:700;color:var(--accent-ink);background:var(--accent-soft);padding:2px 8px;border-radius:99px}
#users{flex:1;overflow-y:auto;padding:0 8px 12px}
.user{display:flex;align-items:center;gap:10px;padding:8px 9px;border-radius:11px;margin-bottom:2px;animation:slideL .35s var(--ease);transition:background .18s}
.user:hover{background:var(--surface-2)}
.avatar{width:32px;height:32px;border-radius:10px;flex:none;display:grid;place-items:center;color:#fff;font-weight:700;font-size:13px;position:relative}
.avatar.speaking{animation:pulseRing 1.2s infinite}
.user-meta{min-width:0;flex:1}
.user-name{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-sub{font-size:11px;color:var(--text-3);display:flex;align-items:center;gap:5px}
.tag{font-size:10px;font-weight:700;padding:1px 6px;border-radius:5px;line-height:1.5}
.tag.host{background:#fdf3e2;color:#8a5c12}
.tag.me{background:var(--accent-soft);color:var(--accent-ink)}
.mic-ico{width:14px;height:14px;flex:none;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.mic-ico.on{stroke:var(--ok)}
.mic-ico.off{stroke:var(--text-3)}
.cam-ico{width:14px;height:14px;flex:none;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.cam-ico.on{stroke:var(--accent)}
.cam-ico.off{stroke:var(--text-3)}
.wave{display:none;align-items:flex-end;gap:1.5px;height:11px}
.wave.on{display:flex}
.wave i{width:2px;background:var(--ok);border-radius:2px;height:100%;transform-origin:bottom;animation:bar .9s ease-in-out infinite}
.wave i:nth-child(2){animation-delay:.15s}
.wave i:nth-child(3){animation-delay:.3s}
.wave i:nth-child(4){animation-delay:.45s}

/* 中间区 */
.center{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0}
#stage{flex:none;display:none;background:#1a1410;border-bottom:1px solid var(--line);position:relative;animation:slideUp .4s var(--ease)}
#stage.on{display:block}
.stage-bar{
  position:absolute;top:0;left:0;right:0;z-index:3;display:flex;align-items:center;gap:8px;
  padding:9px 12px;color:#fff;font-size:12px;
  background:linear-gradient(180deg,rgba(0,0,0,.6),transparent);pointer-events:none;
}
.stage-bar .who{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.live{display:inline-flex;align-items:center;gap:5px;background:#d8553f;color:#fff;font-size:10px;font-weight:800;letter-spacing:.05em;padding:2px 7px;border-radius:5px;flex:none}
.live b{width:5px;height:5px;background:#fff;border-radius:50%;animation:fadeIn 1s infinite alternate}
.stage-bar .btns{margin-left:auto;display:flex;gap:6px;pointer-events:auto}
.stage-bar .btns button{padding:4px 10px;border-radius:8px;font-size:11.5px;font-weight:600;color:#fff;background:rgba(255,255,255,.16);backdrop-filter:blur(6px);transition:background .18s}
.stage-bar .btns button:hover{background:rgba(255,255,255,.3)}
#stageVideo{display:block;width:100%;max-height:44vh;background:#000;aspect-ratio:16/9;object-fit:contain}
#stageFrame{display:none;width:100%;aspect-ratio:16/9;max-height:44vh;border:0;background:#000}
#stage.frame #stageVideo{display:none}
#stage.frame #stageFrame{display:block}

/* 视频通话网格 */
#videos{
  flex:none;display:none;gap:10px;padding:12px 14px;background:var(--surface-2);
  border-bottom:1px solid var(--line);max-height:40vh;overflow-y:auto;
  grid-template-columns:repeat(auto-fill,minmax(210px,1fr));
}
#videos.on{display:grid;animation:slideUp .35s var(--ease)}
.vt{
  position:relative;aspect-ratio:4/3;border-radius:14px;overflow:hidden;background:#1a1410;
  box-shadow:var(--shadow-m);animation:popIn .35s var(--ease);transition:outline-color .2s;
  outline:2px solid transparent;outline-offset:-2px;
}
.vt.speaking{outline-color:var(--ok)}
.vt video{display:block;width:100%;height:100%;object-fit:cover;background:#1a1410}
.vt.me video{transform:scaleX(-1)}
.vt .vt-av{position:absolute;inset:0;display:none;place-items:center;background:#241c13}
.vt.novid .vt-av{display:grid}
.vt.novid video{visibility:hidden}
.vt .vt-av .av{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:700;font-size:20px}
.vt .vt-bar{
  position:absolute;left:0;right:0;bottom:0;display:flex;align-items:center;gap:6px;
  padding:20px 10px 8px;color:#fff;font-size:11.5px;pointer-events:none;
  background:linear-gradient(0deg,rgba(0,0,0,.66),transparent);
}
.vt .vt-nm{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:70%}
.vt .vt-st{margin-left:auto;display:flex;align-items:center;gap:4px;flex:none}
.vt .vt-st svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.vt .vt-st .st-mic{color:#fff}
.vt .vt-st .st-mic.off{color:#e2705a}
.vt .vt-ctl{position:absolute;top:8px;right:8px;display:none;gap:6px;z-index:2}
.vt.me .vt-ctl{display:flex}
.vt .vt-ctl button{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:#fff;
  background:rgba(40,29,14,.5);backdrop-filter:blur(6px);transition:background .18s,transform .18s;
}
.vt .vt-ctl button:hover{background:rgba(40,29,14,.82)}
.vt .vt-ctl button:active{transform:scale(.92)}
.vt .vt-ctl button.off{background:rgba(216,85,63,.9)}
.vt .vt-ctl svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.vt .vt-tip{
  position:absolute;inset:auto 0 0 0;display:grid;place-items:center;padding:8px;
  background:rgba(40,29,14,.72);color:#fff;font-size:11.5px;cursor:pointer;z-index:2;
}

#msgs{flex:1;overflow-y:auto;padding:18px 18px 8px;scroll-behavior:smooth}
.day{text-align:center;margin:6px 0 16px}
.day span{font-size:11px;color:var(--text-3);background:var(--surface);border:1px solid var(--line);padding:3px 12px;border-radius:99px}
.sys{text-align:center;margin:10px 0;animation:fadeIn .4s var(--ease)}
.sys span{font-size:11.5px;color:var(--text-3);background:var(--surface);border:1px solid var(--line);padding:4px 12px;border-radius:99px}
.row{display:flex;gap:9px;margin-bottom:14px;animation:slideUp .35s var(--ease)}
.row.me{flex-direction:row-reverse}
.row .bd{max-width:min(560px,74%);min-width:0}
.row.me .bd{display:flex;flex-direction:column;align-items:flex-end}
.mhd{display:flex;align-items:baseline;gap:7px;margin-bottom:4px;padding:0 2px}
.row.me .mhd{flex-direction:row-reverse}
.mhd .nm{font-size:12px;font-weight:650;color:var(--text-2)}
.mhd .tm{font-size:10.5px;color:var(--text-3)}
.bub{
  padding:9px 13px;border-radius:16px;background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow-s);word-break:break-word;white-space:pre-wrap;line-height:1.65;border-top-left-radius:5px;
}
.row.me .bub{
  background:var(--bub-me);color:var(--ink);border-color:#e8d2a2;
  border-top-left-radius:16px;border-top-right-radius:5px;box-shadow:0 4px 14px rgba(192,139,44,.2);
}
.bub a{color:var(--accent-ink);text-decoration:underline}
.row.me .bub a{color:#7a5310}
.bub.plain{padding:0;background:none;border:none;box-shadow:none}
.img-msg{display:block;max-width:100%;max-height:280px;border-radius:14px;cursor:zoom-in;border:1px solid var(--line);transition:transform .25s var(--ease),box-shadow .25s;background:var(--surface-2)}
.img-msg:hover{transform:scale(1.015);box-shadow:var(--shadow-m)}
.vcard{width:min(480px,100%);border-radius:14px;overflow:hidden;background:#1a1410;border:1px solid var(--line);box-shadow:var(--shadow-m)}
.vcard video,.vcard iframe{display:block;width:100%;aspect-ratio:16/9;border:0;background:#000}
.vcard audio{display:block;width:100%;background:#1a1410}
.vcard .ft{display:flex;align-items:center;gap:8px;padding:7px 10px;background:var(--surface);border-top:1px solid var(--line)}
.vcard .ft .src{font-size:11px;font-weight:700;color:var(--accent-ink);background:var(--accent-soft);padding:2px 7px;border-radius:5px;flex:none}
.vcard .ft .u{font-size:11px;color:var(--text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.vcard .ft button{flex:none;font-size:11px;font-weight:650;color:var(--accent-ink);background:var(--accent-soft);padding:4px 9px;border-radius:7px;transition:background .18s,transform .18s}
.vcard .ft button:hover{background:#f7ead0}
.vcard .ft button:active{transform:scale(.94)}

/* 输入区 */
footer{flex:none;padding:10px 14px 14px;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-top:1px solid var(--line)}
.composer{display:flex;flex-direction:column;align-items:stretch;gap:8px;max-width:1100px;margin:0 auto}
.composer .tools{justify-content:flex-start;flex-wrap:wrap}
.tools{display:flex;gap:4px;flex:none}
.tool{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:var(--text-2);background:var(--surface-2);border:1px solid var(--line);transition:all .2s var(--ease);position:relative}
.tool:hover{color:var(--accent-ink);border-color:#e6cf9a;background:var(--accent-soft);transform:translateY(-1px)}
.tool:active{transform:scale(.93)}
.tool svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tool.active{background:linear-gradient(135deg,var(--accent),var(--accent-2));border-color:var(--accent);color:var(--ink);box-shadow:0 4px 12px rgba(192,139,44,.32)}
.tool.danger.active{background:var(--err);border-color:var(--err);box-shadow:0 4px 12px rgba(216,85,63,.3)}
.tool.muted{background:var(--warn);border-color:var(--warn);color:#4a3512}
.tool .badge{position:absolute;top:-3px;right:-3px;width:9px;height:9px;border-radius:50%;background:var(--ok);border:2px solid #fffaf0;display:none}
.tool.active .badge{display:block}
.inwrap{flex:1;display:flex;align-items:flex-end;background:var(--surface-2);border:1.5px solid var(--line-strong);border-radius:14px;padding:4px 4px 4px 12px;transition:border-color .2s,box-shadow .2s,background .2s}
.inwrap:focus-within{border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px var(--accent-soft)}
#input{flex:1;border:none;background:none;outline:none;resize:none;padding:8px 0;max-height:120px;line-height:1.6;min-height:22px}
#send{width:34px;height:34px;border-radius:10px;flex:none;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--ink);transition:transform .2s var(--ease),filter .2s;box-shadow:0 3px 10px rgba(192,139,44,.3)}
#send svg{width:16px;height:16px;stroke:var(--ink);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
#send:hover{transform:scale(1.07)}
#send:active{transform:scale(.92)}
#send.off{filter:grayscale(1) opacity(.4);pointer-events:none;box-shadow:none}
.hintbar{max-width:1100px;margin:7px auto 0;font-size:11px;color:var(--text-3);display:flex;gap:14px;flex-wrap:wrap}
.hintbar kbd{font-family:inherit;background:var(--surface-2);border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:0 5px;font-size:10.5px}

/* 抽屉遮罩 */
#drawerBtn{display:none}
.mask{position:fixed;inset:0;background:rgba(58,40,14,.42);z-index:29;opacity:0;pointer-events:none;transition:opacity .3s var(--ease)}
.mask.on{opacity:1;pointer-events:auto}

/* 灯箱 */
#lightbox{position:fixed;inset:0;z-index:120;background:rgba(30,22,10,.9);display:none;place-items:center;padding:24px;animation:fadeIn .25s;cursor:zoom-out}
#lightbox.on{display:grid}
#lightbox img{max-width:100%;max-height:100%;border-radius:12px;box-shadow:var(--shadow-l);animation:popIn .35s var(--ease)}
#lightbox .close{position:absolute;top:16px;right:18px;color:#fff;font-size:26px;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.14)}

/* Toast */
#toasts{position:fixed;top:70px;right:16px;z-index:200;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{display:flex;align-items:center;gap:9px;padding:10px 14px;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:11px;box-shadow:var(--shadow-m);font-size:13px;animation:slideR .35s var(--ease);max-width:300px}
.toast.ok{border-left-color:var(--ok)}
.toast.err{border-left-color:var(--err)}
.toast.warn{border-left-color:var(--warn)}
.toast.out{opacity:0;transform:translateX(16px);transition:all .35s var(--ease)}

/* 文件卡片 */
.fcard{display:flex;align-items:center;gap:11px;padding:11px 12px;background:var(--surface-2);border:1px solid var(--line);border-radius:14px;max-width:min(440px,100%);flex-wrap:wrap}
.row.me .fcard{background:#fbf1de;border-color:#ecd9a8}
.f-ico{width:42px;height:42px;border-radius:11px;flex:none;display:grid;place-items:center;background:var(--accent-soft);font-size:21px;border:1px solid var(--line)}
.f-meta{min-width:0;flex:1;min-width:150px}
.f-name{font-size:13px;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:240px}
.f-sub{font-size:11px;color:var(--text-3);margin-top:1px}
.f-kind{color:var(--accent-ink);font-weight:700}
.f-prog{display:flex;align-items:center;gap:7px;margin-top:6px}
.f-bar{flex:1;height:5px;background:#ece0c9;border-radius:99px;overflow:hidden;min-width:90px}
.f-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:99px;transition:width .2s var(--ease)}
.f-pct{font-size:10.5px;color:var(--text-3);font-variant-numeric:tabular-nums;min-width:30px}
.f-acts{display:flex;gap:6px;flex:none}
.f-acts button,.f-acts a{font-size:11.5px;font-weight:650;padding:5px 11px;border-radius:8px;text-decoration:none;background:var(--accent);color:var(--ink);transition:opacity .18s,transform .18s;white-space:nowrap}
.f-acts button{background:var(--accent-soft);color:var(--accent-ink)}
.f-acts button:hover,.f-acts a:hover{transform:translateY(-1px)}
.f-acts button:active,.f-acts a:active{transform:scale(.95)}
.f-acts button[disabled]{opacity:.4;pointer-events:none}
.f-thumb{width:100%;flex-basis:100%;margin-top:9px;max-height:240px;border-radius:11px;cursor:zoom-in;border:1px solid var(--line);object-fit:cover;transition:transform .25s var(--ease)}
.f-thumb:hover{transform:scale(1.012)}

/* 大文件待接收 */
.f-card-pending{display:flex;align-items:center;gap:11px;padding:11px 12px;background:var(--surface-2);border:1px solid var(--warn);border-radius:14px;max-width:min(440px,100%);flex-wrap:wrap}
.row.me .f-card-pending{background:#fdf3e2;border-color:#e3b762}
.f-card-pending .f-ico{background:#fdf3e2;border-color:#e3b762}
.f-download{font-size:11.5px;font-weight:650;padding:6px 12px;border-radius:8px;background:var(--warn);color:#fff;border:none;cursor:pointer;transition:transform .18s var(--ease);white-space:nowrap}
.f-download:hover{transform:translateY(-1px)}
.f-download:disabled{opacity:.5;cursor:wait}
.f-download.dl{background:var(--accent)}
.f-pending-note{font-size:10.5px;color:var(--warn);margin-top:3px}

/* 预览弹窗 */
#previewModal{position:fixed;inset:0;z-index:140;background:rgba(30,22,10,.88);display:none;align-items:stretch;justify-content:center;animation:fadeIn .25s;padding:0}
#previewModal.on{display:flex}
.pm{width:100%;max-width:980px;display:flex;flex-direction:column;background:var(--surface);animation:slideUp .35s var(--ease);max-height:100vh}
.pm-hd{flex:none;display:flex;align-items:center;gap:12px;padding:13px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.9)}
.pm-title{display:flex;align-items:center;gap:9px;min-width:0;flex:1}
.pm-title .pm-ico{font-size:19px;flex:none}
.pm-title #pmName{font-weight:650;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pm-acts{display:flex;align-items:center;gap:8px;flex:none}
.pm-dl{font-size:12.5px;font-weight:650;color:var(--ink);background:linear-gradient(135deg,var(--accent),var(--accent-2));padding:6px 13px;border-radius:9px;text-decoration:none;box-shadow:0 3px 10px rgba(192,139,44,.28)}
.pm-dl:hover{transform:translateY(-1px)}
.pm-x{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-size:22px;color:var(--text-2);background:var(--surface-2);border:1px solid var(--line);transition:background .18s}
.pm-x:hover{background:#fbe6df;color:var(--err)}
.pm-body{flex:1;overflow:auto;padding:18px;background:var(--surface-2);min-height:0}
.pm-loading,.pm-note{padding:30px;text-align:center;color:var(--text-3);font-size:13px}
.pm-note a{color:var(--accent-ink)}
.pm-img{max-width:100%;max-height:78vh;display:block;margin:0 auto;border-radius:12px;box-shadow:var(--shadow-m)}
.pm-media{width:100%;max-height:78vh;display:block;background:#000;border-radius:12px}
.pm-doc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 26px;line-height:1.8;font-size:14px;color:#33291b;max-height:78vh;overflow:auto}
.pm-doc img{max-width:100%}
.pm-doc table{border-collapse:collapse;width:100%}
.pm-doc th,.pm-doc td{border:1px solid #ece0c9;padding:6px 9px}
.pm-doc h1,.pm-doc h2,.pm-doc h3{margin:.4em 0}
.sh{margin-bottom:22px}
.sh-nm{font-size:12px;font-weight:700;color:var(--accent-ink);background:var(--accent-soft);display:inline-block;padding:3px 10px;border-radius:7px;margin-bottom:8px}
.sh-tbl{overflow:auto;border:1px solid var(--line);border-radius:10px;background:#fff}
.sh-tbl table{border-collapse:collapse;font-size:12.5px}
.sh-tbl td,.sh-tbl th{border:1px solid #efe4d2;padding:5px 9px;white-space:nowrap}
.sh-tbl th{background:#f6efe0;font-weight:700}
.slide{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:14px;box-shadow:var(--shadow-s)}
.slide-n{font-size:11.5px;font-weight:800;color:var(--accent-ink);letter-spacing:.04em;margin-bottom:8px}
.slide-body p{margin:5px 0;line-height:1.7;font-size:14px}
.slide-body .pm-note{color:#a3947a;padding:6px 0;text-align:left}
.xm-sheet{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:14px;box-shadow:var(--shadow-s);overflow:auto}
.xm-root{font-size:14px}
.xm-node{margin:6px 0}
.xm-t{display:inline-block;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--ink);font-weight:650;padding:4px 12px;border-radius:8px;font-size:13px}
.xm-ch{margin-left:18px;padding-left:16px;border-left:2px dashed var(--line-strong)}
.xm-ch .xm-t{background:var(--accent-soft);color:var(--accent-ink)}

/* 消息操作 */
.msg-act{display:inline-flex;align-items:center;gap:6px;padding:2px 4px;margin-top:5px;font-size:11px;color:var(--text-3)}
.row.me .msg-act{justify-content:flex-end}
.msg-act button{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;font-size:11px;color:var(--text-3);background:none;border:none;border-radius:6px;cursor:pointer;transition:all .15s;font-family:inherit}
.msg-act button:hover{color:var(--accent-ink);background:var(--accent-soft)}
.msg-act .recall{color:var(--warn)}
.msg-act .recall:hover{color:var(--err);background:#fdf1ec}
.msg-act .recall.hidden{display:none}
.msg-act .dot{opacity:.4;margin:0 1px}

@media (max-width:820px){
  header{height:54px;padding:0 10px;gap:7px}
  .hd-title{display:none}
  #drawerBtn{display:grid}
  .status .txt{display:none}
  .status{padding:5px 8px}
  .room-chip .id{max-width:96px}
  aside{position:fixed;top:54px;bottom:0;left:0;z-index:30;transform:translateX(-102%);transition:transform .35s var(--ease);box-shadow:var(--shadow-l)}
  aside.on{transform:none}
  #msgs{padding:14px 12px 6px}
  .row .bd{max-width:94%}
  footer{padding:8px 10px 10px}
  .hintbar{display:none}
  .composer{gap:6px}
  .composer .tools{gap:6px}
  .tool{width:36px;height:36px}
  .tool svg{width:16px;height:16px}
  .msg-act{margin-top:6px}
  .msg-act button{padding:5px 9px;font-size:11.5px}
  .fcard,.f-card-pending{max-width:100%;flex-wrap:wrap}
  .f-meta{min-width:100%}
  .f-name{max-width:none}
  .f-acts{width:100%;justify-content:flex-start;gap:6px}
  .f-acts button,.f-acts a{flex:1;text-align:center}
  .f-thumb{max-height:180px}
  .vcard{max-width:100%}
  .vcard video,.vcard iframe{aspect-ratio:auto;max-height:200px}
  .vcard .ft{flex-wrap:wrap;gap:4px}
  .vcard .ft .u{max-width:100%;order:10}
  .pm{max-width:100%}
  .pm-hd{padding:10px 12px;gap:8px;flex-wrap:wrap}
  .pm-dl{padding:5px 10px;font-size:11.5px}
  .pm-body{padding:12px}
  #pmName{font-size:13px}
  #stageVideo,#stageFrame{max-height:34vh}
  #videos{padding:9px 10px;max-height:30vh;gap:8px;grid-template-columns:repeat(auto-fill,minmax(132px,1fr))}
  .vt{border-radius:11px}
  .vt .vt-ctl button{width:27px;height:27px}
  #toasts{top:auto;bottom:80px;right:10px;left:10px}
  .toast{max-width:none}
}