:root{--bg: #101418;--panel: #171d24;--panel-2: #1f2731;--line: #2a3441;--text: #e6edf3;--muted: #8b98a5;--accent: #2f8fef;--danger: #e5534b;--ok: #3fb950}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{background:var(--bg);color:var(--text);font:14px/1.6 -apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}a{color:var(--accent);text-decoration:none}button{background:var(--accent);color:#fff;border:0;border-radius:6px;padding:7px 14px;font-size:14px;cursor:pointer}button.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}input,select{background:var(--panel-2);border:1px solid var(--line);color:var(--text);border-radius:6px;padding:7px 10px;font-size:14px;outline:none}input:focus,select:focus{border-color:var(--accent)}.layout{display:flex;height:100%}.sidebar{width:260px;min-width:200px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden}.sidebar .brand{padding:14px 16px;font-weight:600;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.sidebar .chan-list{flex:1;overflow:auto;padding:8px}.chan{padding:8px 10px;border-radius:6px;cursor:pointer;display:flex;justify-content:space-between;gap:8px}.chan:hover{background:var(--panel-2)}.chan.active{background:var(--panel-2);box-shadow:inset 2px 0 0 var(--accent)}.chan .name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tag{font-size:11px;padding:1px 6px;border-radius:99px;background:var(--panel-2);color:var(--muted);border:1px solid var(--line);white-space:nowrap}.tag.pub{color:var(--ok);border-color:#1d3b26}.main{flex:1;display:flex;flex-direction:column;min-width:0}.toolbar{display:flex;gap:8px;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--panel);flex-wrap:wrap}.toolbar .spacer{flex:1}.stream{flex:1;overflow:auto;padding:14px}.msg{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:10px 12px;margin-bottom:10px}.msg .meta{color:var(--muted);font-size:12px;display:flex;gap:10px;margin-bottom:6px;flex-wrap:wrap}.msg .text{white-space:pre-wrap;word-break:break-word}.msg img{max-width:100%;max-height:420px;border-radius:6px;margin-top:8px;cursor:zoom-in;display:block}.badge{color:var(--accent)}.badge.edit{color:#d29922}dialog.lightbox{border:0;background:transparent;padding:0}dialog.lightbox img{max-width:92vw;max-height:92vh}.center{height:100%;display:flex;align-items:center;justify-content:center}.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:22px;width:340px}.card h2{margin:0 0 14px}.card .row{margin-bottom:10px;display:flex;flex-direction:column;gap:6px}.card button{width:100%;margin-top:6px}.err{color:var(--danger);font-size:13px;min-height:18px}.muted{color:var(--muted)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}.pager{display:flex;gap:8px;align-items:center;justify-content:center;padding:10px;color:var(--muted)}@media (max-width: 720px){.sidebar{width:150px;min-width:120px}.stream{padding:8px}}