/* 旺旺 设计系统（配色取意爱马仕式的「主色 + 点缀色」）：
   蓝 = 深蓝 + 柠檬黄（默认） · 紫 = 紫 + 粉 · 白 = 象牙白 + 爱马仕橙。
   --accent 是主色（气泡、选中、链接、按钮），--hl 是点缀色（未读角标、发送键、VIP 标记）。红色只留给危险操作和错误。 */
:root{
  --accent:#12306b; --accent-h:#0b2250; --accent-soft:#e8edf8; --on-accent:#fff;
  --hl:#f7d52d; --on-hl:#12306b;
  --bg:#fff; --side:#f9fafd; --surface:#f1f4fa; --surface-2:#e6ebf4; --chat:#eef2f8;
  --line:rgba(13,27,54,.09); --line-strong:rgba(13,27,54,.16);
  --text:#0d1b36; --sub:#5d6b85; --faint:#94a0b6;
  --bub-me:#12306b; --bub-me-t:#fff; --bub-o:#fff; --bub-o-t:#0d1b36; --bub-shadow:0 1px 1.5px rgba(13,27,54,.08);
  --red:#d6343b; --green:#2f9e5b; --amber:#d9930d;
  --sel:#e8edf8; --hover:rgba(13,27,54,.04);
  --shadow-pop:0 18px 44px -14px rgba(13,27,54,.34),0 0 0 1px rgba(13,27,54,.07);
  --shadow-sm:0 1px 2px rgba(13,27,54,.07);
  --mask:rgba(8,14,30,.5);
  --r-sm:8px; --r:12px; --r-lg:18px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC","STSong",Georgia,serif;
  color-scheme:light;
}
/* 紫 + 粉 */
:root[data-accent="purple"]{
  --accent:#5a2d91; --accent-h:#49227a; --accent-soft:#f1eaf9; --hl:#e8458b; --on-hl:#fff;
  --side:#fbf9fd; --surface:#f4eff9; --surface-2:#e9e1f3; --chat:#f4f0f9;
  --line:rgba(40,16,70,.09); --line-strong:rgba(40,16,70,.16);
  --text:#1d1428; --sub:#6b5e80; --faint:#a196b4;
  --bub-me:#5a2d91; --bub-shadow:0 1px 1.5px rgba(40,16,70,.08); --sel:#f1eaf9; --hover:rgba(40,16,70,.04);
  --shadow-pop:0 18px 44px -14px rgba(40,16,70,.36),0 0 0 1px rgba(40,16,70,.07); --mask:rgba(20,8,36,.5);
}
/* 象牙白 + 爱马仕橙 */
:root[data-accent="white"]{
  --accent:#2b2118; --accent-h:#000; --accent-soft:#f3ede5; --hl:#ea6a1a; --on-hl:#fff;
  --bg:#fff; --side:#fcfaf7; --surface:#f6f2ec; --surface-2:#ece6dc; --chat:#f7f4ef;
  --line:rgba(43,33,24,.09); --line-strong:rgba(43,33,24,.17);
  --text:#2a2018; --sub:#7a6c5f; --faint:#aa9d90;
  --bub-me:#2b2118; --bub-shadow:0 1px 1.5px rgba(43,33,24,.08); --sel:#f3ede5; --hover:rgba(43,33,24,.04);
  --shadow-pop:0 18px 44px -14px rgba(43,33,24,.32),0 0 0 1px rgba(43,33,24,.07); --mask:rgba(30,20,10,.48);
}
:root[data-theme="dark"]{
  --accent:#8fb0ff; --accent-h:#aac2ff; --accent-soft:#16254a; --on-accent:#08122b;
  --hl:#ffe14d; --on-hl:#10234c;
  --bg:#0b1220; --side:#0e1628; --surface:#152036; --surface-2:#1e2b46; --chat:#080e1a;
  --line:rgba(255,255,255,.07); --line-strong:rgba(255,255,255,.13);
  --text:#e8ecf5; --sub:#97a3bb; --faint:#62708b;
  --bub-me:#1d4189; --bub-me-t:#fff; --bub-o:#16213a; --bub-o-t:#e8ecf5; --bub-shadow:none;
  --red:#ff6b72; --green:#46c27a; --amber:#f0b54a;
  --sel:#14284f; --hover:rgba(255,255,255,.045);
  --shadow-pop:0 20px 48px -14px rgba(0,0,0,.75),0 0 0 1px rgba(255,255,255,.08);
  --shadow-sm:none; --mask:rgba(0,0,0,.65);
  color-scheme:dark;
}
:root[data-theme="dark"][data-accent="purple"]{
  --accent:#b99bff; --accent-h:#cbb4ff; --accent-soft:#2a1d47; --on-accent:#1a0b2c; --hl:#ff6fae; --on-hl:#2a0b1b;
  --bg:#120d1b; --side:#160f21; --surface:#1e1530; --surface-2:#2a1f40; --chat:#0d0a14;
  --text:#ece6f5; --sub:#a094b8; --faint:#6c6085;
  --bub-me:#5a2d91; --bub-o:#1f1730; --bub-o-t:#ece6f5; --sel:#2a1d47;
}
:root[data-theme="dark"][data-accent="white"]{
  --accent:#f0e6dc; --accent-h:#fff; --accent-soft:#2b231c; --on-accent:#1a120b; --hl:#ff8a3d; --on-hl:#1c0f05;
  --bg:#14110f; --side:#17130f; --surface:#211b16; --surface-2:#2d251e; --chat:#0f0c0a;
  --text:#f1e9e0; --sub:#a89a8c; --faint:#6f6358;
  --bub-me:#4d3d31; --bub-o:#201a15; --bub-o-t:#f1e9e0; --sel:#2b231c;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font:14px/1.5 var(--font);background:var(--bg);color:var(--text);overflow:hidden;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
button{font:inherit;cursor:pointer;color:inherit;background:none;border:none}
input,textarea,select{font:inherit;color:inherit}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input:focus-visible,textarea:focus-visible{outline:none}
svg.i{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
time,.time,.tnum{font-variant-numeric:tabular-nums}
::selection{background:var(--accent-soft)}
*{scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}
::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:8px;border:2px solid transparent;background-clip:content-box}

/* ---------- 登录 ---------- */
.auth{height:100dvh;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);background:var(--bg)}
.auth-aside{background:var(--surface);border-right:1px solid var(--line);padding:56px;display:flex;flex-direction:column;justify-content:space-between}
.auth-aside .mark{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:700;font-size:20px;letter-spacing:.12em}
.auth-aside .mark img{width:36px;height:36px}
.auth-aside h2{font-family:var(--serif);font-size:32px;line-height:1.35;font-weight:700;letter-spacing:.02em;max-width:15em}
.auth-aside ul{list-style:none;margin-top:22px;display:grid;gap:12px;color:var(--sub)}
.auth-aside li{display:flex;gap:10px;align-items:center}
.auth-aside li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--hl);flex:none}
.auth-aside small{color:var(--faint)}
.auth-main{display:flex;align-items:center;justify-content:center;padding:24px}
.auth-card{width:min(360px,100%)}
.auth-logo{display:none;align-items:center;gap:10px;margin-bottom:26px;font-weight:600;font-size:20px}
.auth-logo img{width:34px;height:34px}
.auth-card h1{font-family:var(--serif);font-size:26px;font-weight:700;letter-spacing:.02em;margin-bottom:4px}
.auth-card .lead{color:var(--sub);margin-bottom:22px}
.auth-tabs{display:flex;gap:22px;border-bottom:1px solid var(--line);margin-bottom:20px}
.auth-tabs button{padding:0 0 10px;color:var(--sub);font-weight:500;position:relative}
.auth-tabs button.on{color:var(--text)}
.auth-tabs button.on::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent);border-radius:2px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:var(--sub);margin-bottom:6px;font-weight:500}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line-strong);background:var(--bg);border-radius:var(--r);padding:11px 13px;outline:none;font-size:15px;transition:border-color .15s,box-shadow .15s}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;border-radius:var(--r);font-weight:500;background:var(--accent);color:var(--on-accent);min-height:38px;transition:background .15s,transform .05s}
.btn:hover{background:var(--accent-h)}
.btn:active{transform:translateY(.5px)}
.btn:disabled{opacity:.45;cursor:default}
.btn.ghost{background:var(--surface);color:var(--text)}
.btn.ghost:hover{background:var(--surface-2)}
.btn.danger{background:var(--red);color:#fff}
.btn.sm{padding:5px 12px;min-height:30px;font-size:13px;border-radius:var(--r-sm)}
.btn.block{width:100%;padding:12px;font-size:15px}
.err{color:var(--red);font-size:13px;min-height:20px;margin:-4px 0 8px}
.tip{color:var(--sub);font-size:12.5px}
.uin-reveal{border:1px solid var(--line);background:var(--surface);border-radius:var(--r-lg);padding:20px;text-align:center;margin:6px 0 18px}
.uin-reveal b{display:block;font-family:var(--serif);font-size:36px;font-weight:700;letter-spacing:.08em;margin:6px 0;font-variant-numeric:tabular-nums;color:var(--accent)}

/* ---------- 主布局 ---------- */
.layout{display:flex;height:100dvh;background:var(--bg)}
.side{width:clamp(280px,38vw,350px);flex:none;border-right:1px solid var(--line);display:flex;flex-direction:column;background:var(--side);min-width:0}
.main{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--chat);position:relative}
.side-top{display:flex;align-items:center;gap:8px;padding:12px 12px 8px}
.me-btn{width:36px;height:36px;border-radius:50%;flex:none;padding:0;position:relative}
.me-btn .av{width:36px;height:36px}
.icon-btn{width:36px;height:36px;border-radius:var(--r-sm);display:inline-flex;align-items:center;justify-content:center;color:var(--sub);position:relative;flex:none;transition:background .12s,color .12s}
.icon-btn:hover{background:var(--surface);color:var(--text)}
.icon-btn:disabled{opacity:.4;cursor:default}
.search{flex:1;display:flex;align-items:center;gap:7px;background:var(--surface);border-radius:var(--r);padding:0 11px;height:36px;color:var(--faint);min-width:0;transition:box-shadow .15s,background .15s}
.search:focus-within{background:var(--bg);box-shadow:0 0 0 1.5px var(--accent)}
.search input{flex:1;border:none;background:none;outline:none;min-width:0;font-size:14px;color:var(--text)}
.search input::placeholder{color:var(--faint)}
.search input::-webkit-search-cancel-button{display:none}
.tabs{display:flex;padding:0 6px;border-bottom:1px solid var(--line)}
.tab{flex:1;padding:9px 0 9px;display:flex;align-items:center;justify-content:center;gap:6px;font-size:13.5px;color:var(--sub);position:relative;font-weight:500;transition:color .12s}
.tab svg.i{width:18px;height:18px}
.tab:hover{color:var(--text)}
.tab.on{color:var(--accent)}
.tab.on::after{content:"";position:absolute;left:18%;right:18%;bottom:-1px;height:2px;border-radius:2px;background:var(--accent)}
.badge{min-width:18px;height:18px;border-radius:9px;background:var(--hl);color:var(--on-hl);font-size:11px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;padding:0 5px;font-variant-numeric:tabular-nums;line-height:1}
.tab .badge{position:static;margin-left:0}
.side-body{flex:1;overflow-y:auto;overscroll-behavior:contain;padding:6px 0 10px}
.list-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px 4px;color:var(--faint);font-size:12px;font-weight:500;letter-spacing:.02em}
.row{display:flex;align-items:center;gap:12px;padding:9px 12px;margin:1px 8px;border-radius:var(--r);cursor:pointer;position:relative;transition:background .1s}
.row:hover{background:var(--hover)}
.row.on{background:var(--sel)}
.row .meta{flex:1;min-width:0}
.row .t1{display:flex;align-items:baseline;gap:6px}
.row .name{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:15px}
.row .time{font-size:11.5px;color:var(--faint);flex:none}
.row .t2{display:flex;align-items:center;gap:6px;color:var(--sub);font-size:13px;margin-top:1px;min-height:20px}
.row .snip{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .snip em{font-style:normal;color:var(--hl);font-weight:600}
.empty{padding:56px 28px;text-align:center;color:var(--sub);font-size:13.5px;line-height:1.7}
.empty .ill{width:56px;height:56px;border-radius:18px;background:var(--surface);color:var(--faint);display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px}
.empty .ill svg.i{width:26px;height:26px;stroke-width:1.4}
.empty b{display:block;font-size:15px;font-weight:600;color:var(--text);margin-bottom:4px}

/* 头像 */
.av{width:46px;height:46px;border-radius:50%;flex:none;position:relative;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:17px;user-select:none;background:var(--surface-2)}
.av svg.idt{width:100%;height:100%;border-radius:50%;display:block}
.av img{width:100%;height:100%;border-radius:50%;object-fit:cover;display:block}
.av.sm{width:34px;height:34px;font-size:13px}
.av.xs{width:24px;height:24px;font-size:11px}
.av.lg{width:80px;height:80px;font-size:30px}
.av .dot{position:absolute;right:-1px;bottom:-1px;width:12px;height:12px;border-radius:50%;border:2.5px solid var(--side);background:var(--faint);box-sizing:content-box;margin:-1px -1px 0 0}
.av .dot.online{background:var(--green)}.av .dot.busy{background:var(--red)}
.av.g,.av.g img{border-radius:14px}
.av.g{letter-spacing:.02em}
.av.sm.g,.av.xs.g{border-radius:10px}

/* 好友分组 */
.fgroup-h{display:flex;align-items:center;gap:6px;padding:10px 18px 6px;cursor:pointer;color:var(--sub);font-size:12.5px;font-weight:500;user-select:none}
.fgroup-h:hover{color:var(--text)}
.fgroup-h .arrow{transition:transform .15s;display:inline-block;width:12px;font-size:15px;line-height:1;color:var(--faint)}
.fgroup-h.open .arrow{transform:rotate(90deg)}
.fgroup-h .cnt{margin-left:auto;font-size:12px;color:var(--faint);font-variant-numeric:tabular-nums}
.sig{font-size:12.5px;color:var(--sub);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row.friend{padding:7px 12px}
.row.friend .av{width:38px;height:38px;font-size:15px}
.row.friend.off .av{opacity:.55}
.newfriend{display:flex;align-items:center;gap:12px;padding:9px 12px;margin:2px 8px 4px;border-radius:var(--r);cursor:pointer}
.newfriend:hover{background:var(--hover)}
.newfriend .ic{width:38px;height:38px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}

/* ---------- 聊天区 ---------- */
.chat-head{display:flex;align-items:center;gap:12px;padding:0 14px;background:var(--bg);border-bottom:1px solid var(--line);min-height:58px}
.chat-head .back{display:none}
.chat-head .who{flex:1;min-width:0;line-height:1.3}
.chat-head .who b{font-size:15.5px;font-weight:600;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-head .who>span{font-size:12.5px;color:var(--sub);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-head .who>span.live{color:var(--accent)}
.notice-bar{background:var(--bg);border-bottom:1px solid var(--line);color:var(--sub);padding:7px 16px;font-size:12.5px;display:flex;gap:8px;align-items:center;cursor:pointer}
.notice-bar svg.i{width:15px;height:15px;color:var(--accent)}
.notice-bar span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.msgs{flex:1;overflow-y:auto;padding:14px 18px 8px;overscroll-behavior:contain}
.msgs .more{text-align:center;padding:8px;color:var(--accent);font-size:12.5px;cursor:pointer}
.tsep{text-align:center;margin:16px 0 10px}
.tsep span{font-size:12px;color:var(--faint);font-variant-numeric:tabular-nums}
.sys{text-align:center;margin:10px 0}
.sys span{font-size:12px;color:var(--faint);display:inline-block;max-width:84%}
.msg{display:flex;gap:8px;margin-top:2px;align-items:flex-end}
.msg.first{margin-top:10px}
.msg.me{flex-direction:row-reverse}
.msg .av-slot{width:34px;flex:none}
.msg.me .av-slot{display:none}
.msg .body{max-width:min(70%,560px);min-width:0;display:flex;flex-direction:column;align-items:flex-start}
.msg.me .body{align-items:flex-end}
.msg .nick{font-size:12px;color:var(--sub);margin:0 2px 3px;font-weight:500}
.bubble{background:var(--bub-o);color:var(--bub-o-t);border-radius:16px 16px 16px 5px;padding:7px 12px 6px;word-break:break-word;white-space:pre-wrap;box-shadow:var(--bub-shadow);position:relative;line-height:1.5;font-size:15px}
.msg.me .bubble{background:var(--bub-me);color:var(--bub-me-t);border-radius:16px 16px 5px 16px}
.msg:not(.first) .bubble{border-top-left-radius:6px}
.msg.me:not(.first) .bubble{border-top-left-radius:16px;border-top-right-radius:6px}
.msg:not(.last) .bubble{border-bottom-left-radius:6px}
.msg.me:not(.last) .bubble{border-bottom-left-radius:16px;border-bottom-right-radius:6px}
.bubble a{color:inherit;text-decoration:underline;text-underline-offset:2px}
.bubble .at{color:var(--accent);font-weight:600}
.msg.me .bubble .at{color:#fff;text-decoration:underline;text-underline-offset:2px}
.bubble .txt{white-space:pre-wrap}
.bubble.media{padding:0;background:transparent;box-shadow:none;overflow:hidden;border-radius:14px;line-height:0}
.bubble.media img,.bubble.media video{max-width:min(320px,100%);max-height:360px;display:block;cursor:zoom-in;background:var(--surface-2);border-radius:14px}
.bubble.media .meta-line{position:absolute;right:6px;bottom:6px;background:rgba(0,0,0,.5);color:#fff;border-radius:9px;padding:1px 7px;line-height:1.5}
.bubble.media .meta-line .read{color:#fff}
.bubble.file{display:flex;gap:11px;align-items:center;min-width:220px;cursor:pointer;text-decoration:none;padding:10px 12px}
.bubble.file .fic{width:40px;height:40px;border-radius:11px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;flex:none}
.msg.me .bubble.file .fic{background:rgba(255,255,255,.2);color:#fff}
.bubble.file b{display:block;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:210px;font-size:14.5px}
.bubble.file small{opacity:.7;font-size:12px}
.quote{border-left:2.5px solid var(--accent);background:var(--accent-soft);border-radius:4px 8px 8px 4px;padding:3px 9px;margin:1px 0 5px;font-size:12.5px;cursor:pointer;color:var(--sub);line-height:1.45}
.msg.me .quote{border-left-color:rgba(255,255,255,.85);background:rgba(255,255,255,.16);color:rgba(255,255,255,.9)}
.quote b{display:block;font-weight:600;color:var(--accent)}
.msg.me .quote b{color:#fff}
.meta-line{display:inline-flex;gap:5px;align-items:center;font-size:11px;color:var(--faint);float:right;margin:5px 0 -2px 10px;line-height:1.2;font-variant-numeric:tabular-nums;user-select:none}
.msg.me .meta-line{color:rgba(255,255,255,.72)}
.meta-line .read{color:rgba(255,255,255,.95)}
.meta-line .fail{color:#ffd0d2;cursor:pointer;font-weight:500}
.bubble.media .meta-line{float:none;margin:0}
.recalled{text-align:center;margin:10px 0;font-size:12px;color:var(--faint)}
.typing{height:0}
.reply-bar{display:flex;align-items:center;gap:8px;padding:7px 14px 7px 16px;background:var(--bg);border-top:1px solid var(--line);font-size:12.5px;color:var(--sub);position:relative}
.reply-bar::before{content:"";position:absolute;left:12px;top:8px;bottom:8px;width:2.5px;border-radius:2px;background:var(--accent)}
.reply-bar span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-left:6px}
.reply-bar b{color:var(--accent);font-weight:600}

/* 输入区：附件 / 表情 / 输入框 / 发送 在同一行 */
.composer{background:var(--bg);border-top:1px solid var(--line);padding:10px 12px calc(10px + env(safe-area-inset-bottom));position:relative}
.composer .row-in{display:flex;align-items:flex-end;gap:6px}
.composer .field-wrap{flex:1;min-width:0;background:var(--surface);border-radius:20px;padding:0 14px;display:flex;align-items:center;transition:box-shadow .15s,background .15s}
.composer .field-wrap:focus-within{background:var(--bg);box-shadow:0 0 0 1.5px var(--accent)}
.composer textarea{width:100%;border:none;outline:none;resize:none;background:transparent;max-height:140px;min-height:38px;line-height:1.5;padding:8px 0;font-size:15px}
.composer textarea::placeholder{color:var(--faint)}
.send-btn{width:38px;height:38px;border-radius:50%;background:var(--hl);color:var(--on-hl);display:inline-flex;align-items:center;justify-content:center;flex:none;transition:background .15s,opacity .15s,transform .1s}
.send-btn:hover{filter:brightness(.95)}
.send-btn:disabled{background:var(--surface-2);color:var(--faint);cursor:default}
.send-btn svg.i{width:18px;height:18px;stroke-width:2}
.composer .muted-note{padding:11px;text-align:center;color:var(--sub);background:var(--surface);border-radius:var(--r);font-size:13px}
.progress{height:2px;margin:-10px -12px 8px;background:transparent}.progress i{display:block;height:100%;background:var(--accent);width:0;transition:width .2s}
.pop{position:absolute;background:var(--bg);border-radius:var(--r-lg);box-shadow:var(--shadow-pop);z-index:30;animation:pin .14s ease}
@keyframes pin{from{opacity:0;transform:translateY(4px) scale(.98)}}
.emoji-pop{left:10px;bottom:100%;margin-bottom:8px;width:min(348px,calc(100vw - 24px));padding:8px;display:grid;grid-template-columns:repeat(8,1fr);gap:1px;max-height:230px;overflow-y:auto}
.emoji-pop button{font-size:22px;padding:5px 0;border-radius:var(--r-sm);line-height:1.25}
.emoji-pop button:hover{background:var(--surface)}
.at-pop{left:12px;bottom:100%;margin-bottom:8px;min-width:220px;max-height:240px;overflow-y:auto;padding:5px}
.at-pop .row{margin:0;padding:6px 10px}
.at-pop .row .name{font-size:14px}
.placeholder{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--faint);gap:14px;font-size:13.5px}
.placeholder .ill{width:68px;height:68px;border-radius:22px;background:var(--bg);color:var(--faint);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.placeholder .ill svg.i{width:30px;height:30px;stroke-width:1.3}
.ctx{position:fixed;z-index:80;background:var(--bg);border-radius:var(--r);box-shadow:var(--shadow-pop);padding:5px;min-width:140px;animation:pin .12s ease}
.ctx button{display:block;width:100%;text-align:left;padding:8px 12px;border-radius:var(--r-sm);font-size:14px}
.ctx button:hover{background:var(--surface)}
.ctx button.danger{color:var(--red)}

/* ---------- 弹窗 / 抽屉 ---------- */
.mask{position:fixed;inset:0;background:var(--mask);z-index:60;display:flex;align-items:center;justify-content:center;padding:16px;animation:fin .15s ease;backdrop-filter:blur(2px)}
@keyframes fin{from{opacity:0}}
.modal{background:var(--bg);border-radius:var(--r-lg);box-shadow:var(--shadow-pop);width:min(420px,100%);max-height:min(86dvh,720px);display:flex;flex-direction:column;overflow:hidden;animation:pin .18s ease}
.modal.wide{width:min(540px,100%)}
.modal-h{display:flex;align-items:center;padding:16px 16px 8px 20px}
.modal-h b{flex:1;font-size:17px;font-weight:600}
.modal-b{padding:6px 20px 18px;overflow-y:auto;flex:1}
.modal-f{display:flex;gap:10px;justify-content:flex-end;padding:12px 20px 16px;border-top:1px solid var(--line)}
.seg{display:flex;background:var(--surface);border-radius:var(--r);padding:3px;margin-bottom:12px}
.seg button{flex:1;padding:7px 0;border-radius:9px;color:var(--sub);font-weight:500;transition:background .12s}
.seg button.on{background:var(--bg);color:var(--text);box-shadow:var(--shadow-sm)}
.drawer-mask{position:fixed;inset:0;background:var(--mask);z-index:60;animation:fin .15s ease}
.drawer{position:fixed;top:0;bottom:0;width:min(330px,88vw);background:var(--bg);z-index:61;box-shadow:var(--shadow-pop);overflow-y:auto;display:flex;flex-direction:column}
.drawer.left{left:0;animation:dl .2s ease}.drawer.right{right:0;width:min(370px,94vw);animation:dr .2s ease}
@keyframes dl{from{transform:translateX(-24px);opacity:0}}@keyframes dr{from{transform:translateX(24px);opacity:0}}
.me-card{padding:26px 20px 16px;display:flex;flex-direction:column;gap:3px;border-bottom:1px solid var(--line)}
.me-card .av{width:64px;height:64px;font-size:24px;margin-bottom:8px}
.me-card b{font-size:18px;font-weight:600}.me-card span{color:var(--sub);font-size:13px}
.me-card .chips{display:flex;gap:6px;margin-top:10px}
.chip{padding:4px 11px;border-radius:14px;background:var(--surface);color:var(--sub);font-size:12.5px;font-weight:500;display:inline-flex;gap:6px;align-items:center}
.chip i{width:7px;height:7px;border-radius:50%;background:var(--faint)}
.chip.on{background:var(--accent-soft);color:var(--accent)}
.chip.on.online i{background:var(--green)}.chip.on.busy i{background:var(--red)}
.menu-item{display:flex;align-items:center;gap:14px;padding:12px 20px;cursor:pointer;width:100%;text-align:left;font-size:14.5px}
.menu-item:hover{background:var(--hover)}
.menu-item .i{color:var(--sub);display:flex}
.menu-item .tog{margin-left:auto}
.switch{width:40px;height:24px;border-radius:12px;background:var(--surface-2);position:relative;transition:background .15s;flex:none}
.switch::after{content:"";position:absolute;left:2px;top:2px;width:20px;height:20px;border-radius:50%;background:#fff;transition:left .15s;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.switch.on{background:var(--accent)}.switch.on::after{left:18px}
.user-card{text-align:center;padding:8px 0 6px}
.user-card .av{margin:4px auto 10px}
.user-card h3{font-size:19px;font-weight:600}
.user-card p{color:var(--sub);margin-top:2px;font-size:13.5px}
.kv{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);gap:14px;align-items:center}
.kv span:first-child{color:var(--sub);flex:none}
.pick-list{max-height:260px;overflow-y:auto;border:1px solid var(--line);border-radius:var(--r);padding:4px}
.pick-list .row{margin:0;padding:7px 10px}
.pick-list input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent)}
.member{display:flex;align-items:center;gap:12px;padding:8px 0}
.member .nm{flex:1;min-width:0;line-height:1.4}
.tag{font-size:11.5px;padding:1px 8px;border-radius:10px;background:var(--accent-soft);color:var(--accent);font-weight:500;display:inline-block}
.tag.owner{background:rgba(217,147,13,.14);color:var(--amber)}
.tag.bad{background:rgba(229,72,77,.12);color:var(--red)}
.lightbox{position:fixed;inset:0;background:rgba(6,8,12,.92);z-index:90;display:flex;align-items:center;justify-content:center;padding:20px;animation:fin .15s ease}
.lightbox img,.lightbox video{max-width:100%;max-height:100%;border-radius:8px}
#toasts{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:100;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none;width:max-content;max-width:92vw}
.toast{background:var(--text);color:var(--bg);border-radius:12px;padding:10px 16px;font-size:13.5px;font-weight:500;box-shadow:var(--shadow-pop);animation:pin .18s ease}
.toast.bad{background:var(--red);color:#fff}
.conn-bar{background:var(--amber);color:#fff;text-align:center;font-size:12.5px;padding:5px;font-weight:500}
.drop-hint{position:absolute;inset:8px;border:2px dashed var(--accent);border-radius:var(--r-lg);background:color-mix(in srgb,var(--accent) 8%,transparent);z-index:20;display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--accent);font-weight:500;pointer-events:none}

/* ---------- 窄屏（手机）：单栏，底部页签 ---------- */
@media (max-width:600px){
  .auth{grid-template-columns:1fr}
  .auth-aside{display:none}
  .auth-logo{display:flex}
  .side{width:100%;border-right:none}
  .tabs{order:3;border-bottom:none;border-top:1px solid var(--line);padding:4px 6px calc(4px + env(safe-area-inset-bottom));background:var(--side)}
  .tab{flex-direction:column;gap:2px;font-size:11.5px;padding:6px 0}
  .tab svg.i{width:22px;height:22px}
  .tab.on::after{display:none}
  .main{position:fixed;inset:0;z-index:20;transform:translateX(100%);transition:transform .22s ease}
  .layout[data-pane="chat"] .main{transform:none}
  .chat-head .back{display:inline-flex}
  .msg .body{max-width:80%}
  .composer textarea,.field input,.field textarea,.field select,.search input{font-size:16px}
  .row{padding:10px 12px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* 会员标记与动态头像 */
.vip-tag{display:inline-block;font-size:10px;font-weight:700;letter-spacing:.08em;line-height:1;padding:3px 6px;border-radius:6px;background:var(--hl);color:var(--on-hl);vertical-align:2px;margin-left:6px}
.av video.av-vid{width:100%;height:100%;border-radius:inherit;object-fit:cover;display:block;background:var(--surface-2)}
.av.vip::after{content:"";position:absolute;inset:-3px;border-radius:inherit;border:1.5px solid var(--accent);opacity:.55;pointer-events:none}
.swatches{display:flex;align-items:center;gap:14px;padding:12px 20px}
.swatches>span{color:var(--sub);font-size:14.5px;flex:1}
.sw{width:28px;height:28px;border-radius:50%;position:relative;box-shadow:inset 0 0 0 1px var(--line-strong)}
.sw.on::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid var(--text)}
.sw[data-a=blue]{background:linear-gradient(135deg,#12306b 50%,#f7d52d 50%)}.sw[data-a=purple]{background:linear-gradient(135deg,#5a2d91 50%,#e8458b 50%)}.sw[data-a=white]{background:linear-gradient(135deg,#f6f2ec 50%,#ea6a1a 50%)}
.av-edit{display:flex;gap:16px;align-items:center;margin-bottom:6px}
.av-edit .btns{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.lockbtn[disabled]{opacity:.55}