:root{--c:#1677ff;--c-light:#e8f1ff;--bg:#f3f5f8;--text:#1f2329;--sub:#8f959e;--line:#e5e6eb;--red:#f5222d;--green:#52c41a;--orange:#fa8c16}
*{box-sizing:border-box}
html,body{margin:0;height:100%;color:var(--text);background:var(--bg);font:14px/1.5 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif}
[hidden]{display:none!important}
a{color:var(--c);text-decoration:none}
button{font:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}

.btn{border:1px solid var(--line);background:#fff;border-radius:6px;padding:5px 14px;line-height:20px;white-space:nowrap}
.btn:hover{border-color:var(--c);color:var(--c)}
.btn-primary{background:var(--c);border-color:var(--c);color:#fff}
.btn-primary:hover{color:#fff;opacity:.9}
.btn-danger{color:var(--red)}
.btn-danger:hover{border-color:var(--red);color:var(--red)}
.btn-sm{padding:2px 10px;font-size:12px}
.inp{border:1px solid var(--line);border-radius:6px;padding:6px 10px;outline:none;background:#fff;min-width:0}
.inp:focus{border-color:var(--c)}
textarea.inp{resize:vertical}

/* 登录 */
.login{height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#e8f1ff,#f6f8fb)}
.login-box{background:#fff;padding:36px 32px;border-radius:14px;width:340px;display:flex;flex-direction:column;gap:14px;box-shadow:0 8px 32px rgba(0,0,0,.08)}
.login-box input{border:1px solid var(--line);border-radius:8px;padding:10px 12px;outline:none}
.login-box input:focus{border-color:var(--c)}
.login-box .btn{padding:10px}
.login-title{font-size:22px;font-weight:600;text-align:center;margin-bottom:8px}
.login-foot{text-align:center;font-size:12px;display:flex;gap:8px}
.cap-row{display:flex;gap:8px}.cap-row input{flex:1;min-width:0}
.cap-q{flex:0 0 110px;display:flex;align-items:center;justify-content:center;background:#f2f3f5;border-radius:8px;font-weight:600;letter-spacing:1px;cursor:pointer;user-select:none}
/* 窗口外观 / 绑定域名 */
.swatch{display:inline-block;width:14px;height:14px;border-radius:4px;vertical-align:-2px;border:1px solid rgba(0,0,0,.1)}
.icon-prev{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 3px 10px rgba(0,0,0,.15);overflow:hidden}
.icon-prev img{width:100%;height:100%;object-fit:cover}
.icon-prev svg{width:24px;height:24px}
.theme-prev{border:1px solid var(--line);border-radius:12px;overflow:hidden;width:240px;font-size:12px;background:#f5f6f8}
.theme-prev .h{color:#fff;padding:10px 12px;font-weight:600}
.theme-prev .b{padding:10px 12px;display:flex;flex-direction:column;gap:8px}
.theme-prev .m{background:#fff;border-radius:4px 10px 10px 10px;padding:6px 10px;align-self:flex-start}
.theme-prev .me{color:#fff;border-radius:10px 4px 10px 10px;padding:6px 10px;align-self:flex-end}
.colors{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.colors i{width:22px;height:22px;border-radius:6px;cursor:pointer;border:2px solid #fff;box-shadow:0 0 0 1px var(--line)}
.dns-box{background:#f7f9fc;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:13px;line-height:1.9;margin-bottom:12px}
.dns-box code{background:#fff;border:1px solid var(--line);border-radius:4px;padding:1px 6px}
.tag.orange{background:#fff7e6;color:#d46b08}
.tag.red{background:#fff1f0;color:#cf1322}

/* 框架 */
.app{display:flex;height:100%}
.nav{width:72px;background:#1f2633;display:flex;flex-direction:column;align-items:center;padding:12px 0;flex-shrink:0}
.nav-logo{width:40px;height:40px;border-radius:10px;background:var(--c);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.nav a{width:60px;padding:8px 0;border-radius:8px;color:#a5adba;display:flex;flex-direction:column;align-items:center;font-size:11px;gap:3px;position:relative;margin-bottom:4px}
.nav a svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}
.nav a:hover{color:#fff}
.nav a.on{background:rgba(255,255,255,.1);color:#fff}
.nav-badge{position:absolute;top:2px;right:6px;background:var(--red);color:#fff;font-size:10px;font-weight:600;min-width:16px;height:16px;border-radius:8px;line-height:16px;text-align:center;padding:0 4px}
.nav-badge:empty{display:none}
.nav-spacer{flex:1}
.nav-me{position:relative;cursor:pointer}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--c) center/cover no-repeat;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;flex-shrink:0;font-size:14px}
.nav-me .dot{position:absolute;right:-1px;bottom:-1px;border:2px solid #1f2633;width:12px;height:12px}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#c9cdd4;flex-shrink:0}
.dot.online{background:var(--green)}.dot.busy{background:var(--orange)}.dot.offline{background:#c9cdd4}
.menu{position:fixed;left:80px;bottom:14px;background:#fff;border-radius:10px;box-shadow:0 8px 28px rgba(0,0,0,.15);padding:6px;min-width:180px;z-index:50}
.menu-name{padding:6px 12px;font-weight:600}
.menu-item{padding:7px 12px;border-radius:6px;cursor:pointer;display:flex;align-items:center;gap:8px}
.menu-item:hover{background:var(--bg)}
.menu-sep{height:1px;background:var(--line);margin:4px 0}
.conn-tip{position:fixed;top:0;left:72px;right:0;background:#fff1f0;color:#cf1322;text-align:center;font-size:12px;padding:4px;z-index:40}
.page{flex:1;min-width:0;display:flex;overflow:hidden}

/* 通用页面 */
.panel{flex:1;overflow:auto;padding:24px 28px}
.panel h2{margin:0 0 18px;font-size:18px}
.card{background:#fff;border-radius:10px;padding:18px 20px;margin-bottom:16px}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}
.table{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden}
.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:13px}
.table th{background:#fafbfc;color:var(--sub);font-weight:500;white-space:nowrap}
.table tr:last-child td{border-bottom:0}
.table .ops{white-space:nowrap;display:flex;gap:6px}
.tag{display:inline-block;background:var(--c-light);color:var(--c);border-radius:4px;padding:0 6px;font-size:12px;line-height:18px}
.tag.gray{background:#f2f3f5;color:var(--sub)}
.tag.green{background:#f6ffed;color:#389e0d}
.empty{color:var(--sub);text-align:center;padding:40px 0}
.pager{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:12px;color:var(--sub);font-size:13px}
.form-row{display:flex;gap:16px;margin-bottom:14px;align-items:flex-start}
.form-row>label{width:130px;flex-shrink:0;color:var(--sub);padding-top:6px;text-align:right}
.form-row>.fc{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}
.form-row .hint{font-size:12px;color:var(--sub)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.form-grid>div{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--sub)}
.form-grid>div .inp{font-size:14px;color:var(--text)}
code.block{display:block;background:#f5f6f7;border-radius:6px;padding:8px 10px;font-size:12px;word-break:break-all;white-space:pre-wrap}

/* 会话页 */
.sessions{width:290px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;flex-shrink:0}
.sessions-head{padding:12px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.sessions-head .row{display:flex;gap:6px}
.sessions-head .inp{flex:1}
.filter-tabs{display:flex;gap:4px}
.filter-tabs span{padding:2px 10px;border-radius:12px;cursor:pointer;font-size:12px;color:var(--sub)}
.filter-tabs span.on{background:var(--c-light);color:var(--c)}
.session-list{flex:1;overflow-y:auto}
.s-item{display:flex;gap:10px;padding:12px;cursor:pointer;border-bottom:1px solid #f5f6f7;position:relative}
.s-item:hover{background:#f7f8fa}
.s-item.on{background:var(--c-light)}
.s-item .avatar{background:#8c9bb5;position:relative;overflow:visible}
.s-item .avatar .dot{position:absolute;right:-1px;bottom:-1px;border:2px solid #fff;width:11px;height:11px}
.s-main{flex:1;min-width:0}
.s-top{display:flex;align-items:center;gap:6px}
.s-name{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.s-time{font-size:11px;color:var(--sub);flex-shrink:0}
.s-msg{font-size:12px;color:var(--sub);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;gap:6px;align-items:center}
.s-msg span{flex:1;overflow:hidden;text-overflow:ellipsis}
.s-unread{background:var(--red);color:#fff;font-size:11px;border-radius:9px;min-width:18px;height:18px;line-height:18px;text-align:center;padding:0 5px;flex-shrink:0}
.s-typing{color:var(--green)!important}

.chat{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg)}
.chat-empty{flex:1;display:flex;align-items:center;justify-content:center;color:var(--sub);flex-direction:column;gap:8px}
.chat-head{background:#fff;border-bottom:1px solid var(--line);padding:10px 16px;display:flex;align-items:center;gap:10px;min-height:57px}
.chat-head .title{font-weight:600;font-size:15px}
.chat-head .sub{font-size:12px;color:var(--sub)}
.chat-head .grow{flex:1;min-width:0}
.chat-head .actions{display:flex;gap:6px}
.chat-body{flex:1;overflow-y:auto;padding:14px 20px}
.typing-bar{font-size:12px;color:var(--sub);padding:3px 20px;min-height:22px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.msg{display:flex;gap:8px;margin:10px 0;align-items:flex-start}
.msg .avatar{width:32px;height:32px;font-size:12px;background:#8c9bb5}
.msg .bd{max-width:65%;display:flex;flex-direction:column;align-items:flex-start}
.bubble{background:#fff;padding:8px 12px;border-radius:4px 12px 12px 12px;word-break:break-word;white-space:pre-wrap}
.msg.me{flex-direction:row-reverse}
.msg.me .avatar{background:var(--c)}
.msg.me .bd{align-items:flex-end}
.msg.me .bubble{background:var(--c);color:#fff;border-radius:12px 4px 12px 12px}
.msg.me .bubble a{color:#fff;text-decoration:underline}
.msg-meta{font-size:11px;color:var(--sub);margin-top:2px}
.msg-meta.fail{color:var(--red);cursor:pointer}
.msg-img{max-width:220px;max-height:260px;border-radius:8px;cursor:zoom-in;display:block;background:#e5e6eb}
.msg-file{display:flex;align-items:center;gap:10px;background:#fff;border-radius:10px;padding:10px 12px;color:var(--text);min-width:200px;max-width:280px}
.msg-file .ic{width:36px;height:36px;border-radius:6px;background:var(--c-light);color:var(--c);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;text-transform:uppercase;flex-shrink:0}
.msg-file .nm{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.msg-file .sz{font-size:11px;color:var(--sub)}
.time-sep{text-align:center;color:var(--sub);font-size:12px;margin:12px 0}
.load-more{text-align:center;font-size:12px;color:var(--sub);cursor:pointer;padding:4px}

.composer{background:#fff;border-top:1px solid var(--line);position:relative}
.composer-tools{display:flex;gap:2px;padding:6px 10px 0;align-items:center}
.tool{border:0;background:none;color:#646a73;padding:4px 7px;border-radius:6px;display:flex;align-items:center;gap:4px;font-size:13px}
.tool:hover{background:var(--bg);color:var(--c)}
.tool svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6}
.composer textarea{width:100%;border:0;outline:none;resize:none;padding:8px 14px;height:96px;font:inherit;display:block}
.composer-foot{display:flex;justify-content:flex-end;align-items:center;gap:10px;padding:0 14px 10px;font-size:12px;color:var(--sub)}
.pop{position:absolute;bottom:100%;left:10px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 6px 24px rgba(0,0,0,.1);z-index:5}
.emoji-pop{width:330px;padding:8px;display:grid;grid-template-columns:repeat(10,1fr);gap:2px}
.emoji-pop span{font-size:21px;cursor:pointer;text-align:center;border-radius:6px}
.emoji-pop span:hover{background:var(--bg)}
.quick-pop{width:420px;max-height:320px;display:flex;flex-direction:column}
.quick-pop .inp{margin:8px;border-radius:6px}
.quick-pop .ql{overflow-y:auto;padding:0 6px 6px}
.quick-pop .qg{font-size:12px;color:var(--sub);padding:6px 8px 2px}
.quick-pop .qi{padding:6px 8px;border-radius:6px;cursor:pointer;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.quick-pop .qi b{font-weight:500;margin-right:6px}
.quick-pop .qi:hover,.quick-pop .qi.on{background:var(--c-light)}

.info{width:290px;background:#fff;border-left:1px solid var(--line);overflow-y:auto;flex-shrink:0;padding:16px}
.info h4{margin:0 0 10px;font-size:13px;color:var(--sub);font-weight:500}
.info-row{display:flex;font-size:13px;padding:4px 0;gap:8px}
.info-row>span:first-child{color:var(--sub);width:64px;flex-shrink:0}
.info-row>span:last-child{word-break:break-all;min-width:0}
.info .inp{width:100%;margin-bottom:8px}
.info-sec{border-top:1px solid var(--line);margin-top:14px;padding-top:14px}

/* 统计 */
.stat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:16px}
.stat-card{background:#fff;border-radius:10px;padding:16px 18px}
.stat-card .n{font-size:26px;font-weight:600}
.stat-card .l{color:var(--sub);font-size:13px}
.bars{display:flex;align-items:flex-end;gap:14px;height:180px;padding:10px 0 0}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;height:100%;justify-content:flex-end}
.bar{width:60%;max-width:46px;background:var(--c);border-radius:4px 4px 0 0;min-height:2px}
.bar-col .v{font-size:12px}
.bar-col .d{font-size:12px;color:var(--sub)}

.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:60;padding:16px}
.modal-box{background:#fff;border-radius:12px;width:520px;max-width:100%;max-height:90vh;display:flex;flex-direction:column}
.modal-head{padding:14px 20px;border-bottom:1px solid var(--line);font-weight:600;display:flex;justify-content:space-between}
.modal-x{cursor:pointer;color:var(--sub);font-size:20px;line-height:1}
.modal-body{padding:18px 20px;overflow-y:auto}
.modal-body .form-row>label{width:90px}
.modal-foot{display:flex;justify-content:flex-end;gap:8px;margin-top:6px}
.viewer{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:70;display:flex;align-items:center;justify-content:center;cursor:zoom-out}
.viewer img{max-width:92%;max-height:92%}
.toast{position:fixed;top:24px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.78);color:#fff;padding:8px 18px;border-radius:8px;z-index:80;font-size:13px}

@media (max-width:1180px){.info{display:none}.info.show{display:block;position:absolute;right:0;top:0;bottom:0;z-index:10;box-shadow:-4px 0 16px rgba(0,0,0,.08)}}
@media (max-width:760px){
  .nav{width:56px}.nav a{width:48px;font-size:0}.nav a svg{width:22px;height:22px}.menu{left:62px}.conn-tip{left:56px}
  .sessions{width:100%}.page.chat-open .sessions{display:none}.page:not(.chat-open) .chat{display:none}
  .back-btn{display:flex!important}.msg .bd{max-width:80%}.panel{padding:16px}.form-row{flex-direction:column;gap:4px}.form-row>label{width:auto;text-align:left}
  .stat-cards{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.quick-pop,.emoji-pop{width:calc(100vw - 80px)}
  .table{display:block;overflow-x:auto}
}
.back-btn{display:none}