:root{
  --bg:#F5F5F0;--bg2:#EDECE7;--bg3:#E0DFDA;
  --card:#FFFFFF;--border:rgba(0,0,0,0.06);--sep:rgba(0,0,0,0.04);
  --t1:#1A1A18;--t2:#3D3B37;--t3:#6B6A68;--t4:#9A9893;
  --accent:#AE5630;--accent-hover:#C4633A;--danger:#DC2626;--success:#16A34A;
  --ubbl:#EAE8E1;
  --sidebar-bg:#EDECE7;--sidebar-hover:#E4E3DD;--sidebar-active:#DDDCD6;
  --input-bg:#FFFFFF;--input-border:rgba(0,0,0,0.08);
  --bg-soft:rgba(0,0,0,0.05);
  --safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);
  --radius-s:8px;--radius-m:12px;--radius-l:20px;--radius-xl:24px;
  --ease:cubic-bezier(.32,.72,0,1);--ease-out:cubic-bezier(0,.55,.45,1);
}
[data-theme="dark"]{
  --bg:#1A1A1A;--bg2:#242424;--bg3:#333;
  --card:#2A2A2A;--border:rgba(255,255,255,0.08);--sep:rgba(255,255,255,0.04);
  --t1:#E8E6E3;--t2:#C4C2BF;--t3:#8A8886;--t4:#6A6865;
  --accent:#D4774E;--accent-hover:#E08A60;--danger:#EF4444;--success:#22C55E;
  --ubbl:#2D2D2D;
  --sidebar-bg:#1E1E1E;--sidebar-hover:#2A2A2A;--sidebar-active:#333;
  --input-bg:#2A2A2A;--input-border:rgba(255,255,255,0.1);
  --bg-soft:rgba(255,255,255,0.06);
}
[data-theme="dark"] .mc pre{background:#0D1117}
[data-theme="dark"] .mc pre code{color:#E6EDF3}
[data-theme="dark"] .mc code{background:var(--bg3);color:var(--t2)}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
html,body{height:100%;overflow:hidden}
body{font-family:'Source Serif 4','Noto Serif SC',Georgia,'Times New Roman',serif;background:var(--bg);color:var(--t1);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg3);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--t4)}
input,textarea,select,button{font-family:inherit}

/* ===== App Shell ===== */
#app{height:100vh;height:100dvh;overflow:hidden;position:relative}

/* ===== Sidebar ===== */
#sb-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:90;backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px)}
#sb-overlay.on{display:block}
#sidebar{position:fixed;left:0;top:0;bottom:0;width:80%;max-width:280px;background:var(--sidebar-bg);z-index:100;transform:translateX(-100%);transition:transform .35s var(--ease),visibility 0s .35s;display:flex;flex-direction:column;pointer-events:none;visibility:hidden;border-right:1px solid var(--border);will-change:transform}
#sidebar.on{transform:translateX(0);pointer-events:auto;visibility:visible;transition:transform .35s var(--ease),visibility 0s}

.sb-top{padding:12px 12px 4px;padding-top:calc(12px + var(--safe-top));display:flex;align-items:center;gap:8px}
.sb-new-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;background:none;color:var(--t2);cursor:pointer;border-radius:var(--radius-s);transition:all .15s var(--ease-out)}
.sb-new-btn:hover{background:var(--sidebar-hover)}
.sb-new-btn:active{background:var(--sidebar-active);transform:scale(.95)}
.sb-search{flex:1}
.sb-search-box{display:flex;align-items:center;gap:6px;background:rgba(0,0,0,.04);border-radius:var(--radius-s);padding:7px 10px;transition:background .15s}
.sb-search-box:focus-within{background:rgba(0,0,0,.06)}
.sb-search-box svg{flex-shrink:0;color:var(--t4);width:14px;height:14px}
.sb-search-box input{border:none;background:none;outline:none;font-size:13px;color:var(--t1);width:100%}
.sb-search-box input::placeholder{color:var(--t4)}
.sb-hist-btn{width:32px;height:32px;border:none;background:none;color:var(--t3);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;border-radius:6px;transition:all .15s}
.sb-hist-btn:hover{background:var(--sidebar-hover)}

.sb-assistant{display:flex;align-items:center;gap:10px;padding:10px 14px;margin:4px 8px;cursor:pointer;border-radius:10px;transition:background .15s}
.sb-assistant:hover{background:var(--sidebar-hover)}
.sb-asst-icon{width:28px;height:28px;border-radius:50%;background:#D4A27C;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sb-asst-icon svg{width:16px;height:16px}
.sb-asst-name{font-size:14px;font-weight:500;flex:1;color:var(--t1)}
.sb-asst-chev{color:var(--t4)}

#conv-list{flex:1;overflow-y:auto;padding:4px 0 8px;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}
.folder-bar{padding:4px 12px 8px;display:flex;gap:4px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.folder-bar::-webkit-scrollbar{display:none}
.fc-chip{flex-shrink:0;padding:5px 14px;border-radius:16px;font-size:12px;font-weight:500;border:1px solid var(--bg3);background:transparent;color:var(--t3);cursor:pointer;transition:all .2s var(--ease-out);white-space:nowrap}
.fc-chip.on{background:var(--t1);color:var(--sidebar-bg);border-color:var(--t1)}
.fc-chip:active{transform:scale(.95)}
.cg-label{padding:8px 20px 4px;font-size:11px;color:var(--t4);font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.ci-folder{font-size:11px;color:var(--t4);margin-top:2px;display:flex;align-items:center;gap:3px}
.ci-folder svg{width:10px;height:10px}
.sr-head{padding:8px 20px 4px;font-size:11px;color:var(--t4);font-weight:600;display:flex;align-items:center;gap:6px;text-transform:uppercase;letter-spacing:.5px}
.sr-head svg{width:12px;height:12px}
.sr-item{padding:8px 16px;margin:0 8px;cursor:pointer;transition:background .15s;border-radius:var(--radius-s)}
.sr-item:hover{background:var(--sidebar-hover)}
.sr-item:active{background:var(--sidebar-active)}
.sr-conv{font-size:11px;color:var(--t4);margin-bottom:2px;display:flex;align-items:center;gap:4px}
.sr-conv svg{width:10px;height:10px;flex-shrink:0}
.sr-snip{font-size:13px;color:var(--t2);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sr-snip mark{background:rgba(174,86,48,.12);color:var(--accent);border-radius:2px;padding:0 2px}
.sr-role{font-size:11px;color:var(--t4);font-weight:500}
.msg.hl .mc{animation:hlPulse 2s ease;border-radius:var(--radius-m)}
@keyframes hlPulse{0%,100%{background:transparent}15%,50%{background:rgba(174,86,48,.06)}}
.ci{padding:9px 14px;margin:1px 8px;cursor:pointer;transition:all .15s var(--ease-out);border-radius:var(--radius-s);display:flex;flex-direction:column;gap:1px}
.ci:hover{background:var(--sidebar-hover)}
.ci:active{background:var(--sidebar-active)}
.ci.on{background:var(--sidebar-active)}
.ci-t{font-size:14px;color:var(--t2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ci.on .ci-t{color:var(--t1);font-weight:500}

.sb-bottom{padding:12px 14px;padding-bottom:calc(12px + var(--safe-bottom));border-top:1px solid var(--border);display:flex;align-items:center;gap:10px}
.sb-avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:600;flex-shrink:0}
.sb-uname{flex:1;font-size:14px;font-weight:500;color:var(--t2)}
.sb-btn{width:32px;height:32px;border:none;background:none;color:var(--t3);display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:var(--radius-s);transition:all .15s}
.sb-btn:hover{background:var(--sidebar-hover)}
.sb-btn:active{background:var(--sidebar-active);transform:scale(.95)}

/* ===== Main Chat ===== */
#main{display:flex;flex-direction:column;height:100%}
#header{display:flex;align-items:center;padding:8px 16px;padding-top:calc(8px + var(--safe-top));gap:8px;min-height:52px;background:var(--bg);transition:background .2s}
.h-toggle{width:40px;height:40px;border:none;background:none;color:var(--t2);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;border-radius:var(--radius-s);transition:all .15s}
.h-toggle:hover{background:var(--bg2)}
.h-toggle:active{background:var(--bg3);transform:scale(.93)}
.h-info{flex:1;min-width:0;text-align:center}
.h-title{font-size:15px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--t2)}
.h-acts{display:flex;gap:2px}
.h-btn{width:36px;height:36px;border:none;background:none;color:var(--t3);display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:var(--radius-s);transition:all .15s}
.h-btn:hover{background:var(--bg2);color:var(--t2)}
.h-btn:active{background:var(--bg3);transform:scale(.93)}

/* Messages */
#msgs-wrap{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;background:var(--bg);contain:strict;scroll-behavior:smooth}
#msgs{max-width:700px;margin:0 auto;padding:16px 24px 32px}
.msg{margin-bottom:32px;contain:content}
.msg.msg-new{animation:msgFadeIn .5s var(--ease)}
@keyframes msgFadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.mc{line-height:1.7;word-break:break-word;color:var(--t1);font-size:15px;letter-spacing:-0.005em}
.msg.user{display:flex;justify-content:flex-end;flex-wrap:wrap}
.msg.user .mc{background:var(--ubbl);padding:12px 18px;border-radius:var(--radius-l);border-bottom-right-radius:6px;max-width:85%;font-size:15px}
.msg.assistant{display:flex;gap:0;align-items:flex-start;flex-wrap:wrap}
.msg.assistant .mc{flex:1;min-width:0;padding:6px 0}
.msg-acts{display:flex;gap:2px;margin-top:6px;align-items:center;opacity:0;transition:opacity .2s}
.msg:hover .msg-acts,.msg-acts:focus-within{opacity:1}
.msg-acts-visible{opacity:1}
.msg.user .msg-acts{width:100%;justify-content:flex-end;padding-right:4px}
.msg.assistant .msg-acts{width:100%;padding-left:0;justify-content:flex-start}
.mab{width:28px;height:28px;border:none;background:none;color:var(--t4);border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}
.mab:hover{background:var(--bg2);color:var(--t2)}
.mab:active{background:var(--bg3);color:var(--t1);transform:scale(.9)}
.mab svg{width:15px;height:15px}
.memory-debug{width:85%;max-width:560px;margin:8px 0 0 auto;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--t3)}
.memory-debug-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--border);background:var(--bg2);color:var(--t2);border-radius:var(--radius-s);padding:7px 10px;cursor:pointer;transition:background .15s var(--ease-out),border-color .15s var(--ease-out)}
.memory-debug-head:hover{background:var(--bg3);border-color:rgba(174,86,48,.25)}
.memory-debug-head.open{border-color:rgba(174,86,48,.3)}
.mrd-head-score{font-weight:600;color:var(--accent)}
.memory-debug-body{display:none;margin-top:6px;border:1px solid var(--border);border-radius:var(--radius-s);background:var(--card);overflow:hidden}
.memory-debug-body.open{display:block}
.mrd-meta{padding:8px 10px;border-bottom:1px solid var(--sep);color:var(--t4);font-size:11px}
.mrd-more{margin:8px 10px 0;padding:4px 8px;border:1px solid var(--border);border-radius:6px;background:var(--bg2);color:var(--t3);font-size:11px;cursor:pointer}
.mrd-more:hover{background:var(--bg3);color:var(--t2)}
.mrd-row{padding:9px 10px;border-top:1px solid var(--sep)}
.memory-debug:not(.show-all) .mrd-row.candidate{display:none}
.mrd-row.selected{background:rgba(22,163,74,.06)}
.mrd-row.candidate{background:transparent;opacity:.82}
.mrd-row-top{display:flex;align-items:center;gap:6px;margin-bottom:6px}
.mrd-rank{color:var(--t4)}
.mrd-pill{padding:1px 6px;border-radius:999px;background:var(--bg2);color:var(--t3);font-size:11px}
.mrd-row.selected .mrd-pill{background:rgba(22,163,74,.12);color:var(--success)}
.mrd-score{margin-left:auto;color:var(--accent);font-weight:600}
.mrd-scores{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin-bottom:7px}
.mrd-scores span{display:flex;justify-content:space-between;gap:4px;padding:3px 5px;border-radius:5px;background:var(--bg2);color:var(--t4);min-width:0}
.mrd-scores b{color:var(--t3);font-weight:600}
.mrd-tags,.mrd-match{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:6px}
.mrd-tags span,.mrd-match span{padding:1px 5px;border-radius:5px;background:var(--bg2);color:var(--t3);font-size:11px}
.mrd-match{color:var(--t4)}
.mrd-content{font-family:inherit;color:var(--t2);font-size:12px;line-height:1.55;white-space:pre-wrap;word-break:break-word;max-height:92px;overflow:auto}

/* Claude avatar for assistant */
.claude-avatar{width:28px;height:28px;border-radius:50%;background:#D4A27C;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}
.claude-avatar svg{width:16px;height:16px}

/* Branch navigator */
.branch-nav{display:inline-flex;align-items:center;gap:3px;font-size:12px;color:var(--t4);margin-left:4px;font-family:'JetBrains Mono',monospace}
.branch-nav button{width:20px;height:20px;border:none;background:var(--bg2);border-radius:5px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--t3);transition:all .15s}
.branch-nav button:hover{background:var(--bg3);color:var(--t1)}
.branch-nav button:disabled{opacity:.3;cursor:default}
.branch-nav span{min-width:28px;text-align:center}

/* Message action sheet */
#msg-act-sheet{display:none;position:fixed;inset:0;z-index:300;background:rgba(0,0,0,.35);align-items:flex-end;justify-content:center;backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px)}
#msg-act-sheet.on{display:flex}
.mas-box{background:var(--card);border-radius:var(--radius-l) var(--radius-l) 0 0;width:100%;max-width:500px;padding:8px 0;padding-bottom:calc(8px + var(--safe-bottom));animation:sheetUp .3s var(--ease)}
@keyframes sheetUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
.mas-handle{width:36px;height:4px;background:var(--bg3);border-radius:2px;margin:6px auto 10px}
.mas-item{display:flex;align-items:center;gap:14px;padding:14px 24px;cursor:pointer;transition:all .12s;font-size:15px;color:var(--t1)}
.mas-item:hover{background:var(--bg2)}
.mas-item:active{background:var(--bg3);transform:scale(.99)}
.mas-item svg{width:20px;height:20px;color:var(--t3);flex-shrink:0}
.mas-item.danger{color:var(--danger)}
.mas-item.danger svg{color:var(--danger)}
.mas-cancel{padding:14px 24px;text-align:center;font-size:15px;color:var(--t3);cursor:pointer;border-top:1px solid var(--bg2);margin-top:4px;transition:background .12s}
.mas-cancel:hover{background:var(--bg2)}

/* MD styles */
.mc h1,.mc h2,.mc h3{margin:20px 0 10px;font-weight:600;color:var(--t1)}
.mc h1{font-size:1.35em}.mc h2{font-size:1.15em}.mc h3{font-size:1.05em}
.mc p{margin-bottom:14px}.mc p:last-child{margin-bottom:0}
.mc ul,.mc ol{padding-left:22px;margin-bottom:14px}.mc li{margin-bottom:6px;line-height:1.7}
.mc blockquote{border-left:3px solid var(--accent);padding-left:14px;color:var(--t3);margin:10px 0}
.mc code{font-family:'JetBrains Mono',monospace;font-size:.84em;background:var(--bg2);padding:2px 6px;border-radius:5px;color:var(--t2)}
.mc pre{background:#1E1E1E;border-radius:var(--radius-m);padding:14px 16px;margin:12px 0;overflow-x:auto;position:relative}
.mc pre code{background:none;padding:0;font-size:13px;line-height:1.55;color:#D4D4D4}
.ccb{position:absolute;top:8px;right:8px;padding:4px 10px;background:rgba(255,255,255,.1);color:rgba(255,255,255,.6);border-radius:6px;font-size:11px;cursor:pointer;border:none;transition:all .15s}
.ccb:hover{background:rgba(255,255,255,.18);color:rgba(255,255,255,.85)}
.code-lang{position:absolute;top:8px;left:14px;font-size:11px;color:rgba(255,255,255,.4);font-family:'JetBrains Mono',monospace;text-transform:uppercase;letter-spacing:.5px}
.code-actions{position:absolute;top:8px;right:8px;display:flex;gap:4px}
.code-actions button{padding:4px 10px;background:rgba(255,255,255,.1);color:rgba(255,255,255,.6);border-radius:6px;font-size:11px;cursor:pointer;border:none;transition:all .15s}
.code-actions button:hover{background:rgba(255,255,255,.18);color:rgba(255,255,255,.85)}
.html-preview-wrap{margin:12px 0;border:1px solid var(--border);border-radius:var(--radius-m);overflow:hidden}
.html-preview-bar{display:flex;align-items:center;gap:8px;padding:8px 14px;background:var(--bg2);font-size:12px;color:var(--t3)}
.html-preview-bar .hp-title{flex:1;font-weight:500;display:flex;align-items:center;gap:6px}
.html-preview-bar .hp-title svg{width:14px;height:14px;opacity:.6}
.html-preview-bar button{padding:4px 10px;border-radius:6px;font-size:11px;cursor:pointer;border:1px solid var(--border);background:var(--card);color:var(--t3);transition:all .15s}
.html-preview-bar button:hover{background:var(--bg3);color:var(--t2)}
.html-preview-bar button.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.html-preview-frame{width:100%;border:none;background:var(--card);display:block;transition:height .25s var(--ease-out)}
.hp-body{overflow:hidden;transition:max-height .3s var(--ease-out)}
.hp-body.collapsed{max-height:0!important}
.hp-src{display:none;max-height:300px;overflow-y:auto;margin:0;border-radius:0!important}
.hp-src.open{display:block}
.hp-pending .hp-title{animation:shimmer 1.5s ease-in-out infinite}
@keyframes shimmer{0%,100%{opacity:1}50%{opacity:.5}}
.code-pending{margin:8px 0;border-radius:var(--radius-m);overflow:hidden;background:var(--bg2)}
.code-pending-bar{display:flex;align-items:center;gap:8px;padding:10px 14px;cursor:pointer;-webkit-tap-highlight-color:transparent}
.code-pending-bar svg{width:16px;height:16px;stroke:var(--t4);flex-shrink:0}
.code-pending-bar .cp-arr{width:14px;height:14px;margin-left:auto;transition:transform .25s var(--ease-out);stroke:var(--t4)}
.code-pending-bar.cp-collapsed .cp-arr{transform:rotate(-90deg)}
.code-pending-label{font-size:13px;font-weight:500;animation:shimmer 1.5s ease-in-out infinite;color:var(--t3)}
.code-pending-pre{margin:0;max-height:200px;overflow-y:auto;font-size:11.5px;line-height:1.6;padding:8px 14px;background:var(--bg);color:var(--t3);white-space:pre-wrap;word-break:break-word;border-top:1px solid var(--border)}
.theme-toggle{display:flex;align-items:center;justify-content:space-between;padding:14px 16px}
.theme-toggle-label{font-size:15px;color:var(--t2)}
.theme-switch{width:48px;height:28px;border-radius:14px;background:var(--bg3);position:relative;cursor:pointer;transition:background .25s var(--ease-out);border:none;padding:0}
.theme-switch.on{background:var(--accent)}
.theme-switch::after{content:'';position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:transform .25s var(--ease);box-shadow:0 1px 4px rgba(0,0,0,.15)}
.theme-switch.on::after{transform:translateX(20px)}
.mc .task-list{list-style:none;padding-left:4px}
.mc .task-item{display:flex;align-items:flex-start;gap:8px;padding:4px 0}
.mc .task-item input[type="checkbox"]{width:18px;height:18px;margin-top:2px;accent-color:var(--accent);flex-shrink:0;cursor:pointer;border-radius:4px}
.mc .task-done{color:var(--t3);text-decoration:line-through;text-decoration-color:var(--t4)}
.mc a{color:var(--accent);text-decoration:none;transition:opacity .1s}.mc a:hover{text-decoration:underline}
.mc strong{font-weight:600}.mc em{font-style:italic;color:var(--t2)}
.mc hr{border:none;border-top:1px solid var(--bg3);margin:18px 0}
.mc table{border-collapse:collapse;margin:12px 0;width:100%;font-size:14px}
.mc th,.mc td{border:1px solid var(--bg3);padding:8px 12px;text-align:left}
.mc th{background:var(--bg2);font-weight:500}
.msg-meta{display:flex;align-items:center;gap:8px;margin-bottom:6px;padding:0}
.mm-icon{width:22px;height:22px;border-radius:50%;background:var(--bg2);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:9px;font-weight:700;color:#fff}
.mm-body{display:flex;flex-direction:column;gap:1px;min-width:0}
.mm-name{font-size:12px;color:var(--t3);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mm-info{font-size:11px;color:var(--t4);font-family:'JetBrains Mono',monospace;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.msg-usage{margin-top:2px;font-size:11px;color:var(--t4);font-family:'JetBrains Mono',monospace;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.usage-detail{display:inline-flex;gap:8px;flex-wrap:wrap;align-items:center}
.usage-detail>span{opacity:.75;display:inline-flex;align-items:center;gap:3px;line-height:1}
.usage-detail svg{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.usage-detail .ud-hit{color:#4CAF50}
.usage-detail .ud-write{color:#FF9800}
.msg-imgs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.msg-imgs img{max-width:220px;max-height:220px;border-radius:var(--radius-m);object-fit:cover;cursor:pointer;transition:all .2s}
.msg-imgs img:hover{opacity:.9}.msg-imgs img:active{opacity:.7;transform:scale(.98)}
.msg-docs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.doc-chip{display:flex;align-items:center;gap:6px;background:var(--bg2);padding:8px 12px;border-radius:var(--radius-s);font-size:13px;color:var(--t2)}
.doc-chip svg{flex-shrink:0;color:var(--t3)}
.msg-img-full{position:fixed;inset:0;z-index:400;background:rgba(0,0,0,.85);display:flex;align-items:center;justify-content:center;padding:20px;cursor:pointer;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.msg-img-full img{max-width:100%;max-height:100%;border-radius:var(--radius-s);object-fit:contain}
@keyframes bk{50%{opacity:0}}

/* Tool timeline */
.tool-timeline{position:relative;margin:6px 0 10px;padding-left:28px}
.tool-timeline::before{content:'';position:absolute;left:8px;top:10px;bottom:10px;width:1.5px;background:var(--border)}
.tool-timeline.tl-foldable{padding-left:0}
.tool-timeline.tl-foldable::before{display:none}
.tool-node{position:relative;padding:5px 0}
.tool-node .tn-icon{position:absolute;left:-28px;top:4px;width:18px;height:18px;display:flex;align-items:center;justify-content:center;background:var(--bg);border-radius:50%;z-index:1}
.tool-node .tn-icon svg{width:14px;height:14px;stroke:var(--t4);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tool-node .tn-label{font-size:13px;color:var(--t3);font-weight:400;line-height:1.5}
.tool-node.tn-done .tn-icon svg{stroke:var(--success)}
.tool-node.tn-done .tn-label{color:var(--t4)}
.scur .tool-node.tn-done{opacity:.6}
.scur .tool-timeline .tool-node:not(.tn-done):last-child .tn-label,
.scur .tool-timeline .tool-node:not(.tn-done):has(+.tn-done) .tn-label{font-weight:500;background:linear-gradient(90deg,var(--t3) 0%,var(--t4) 40%,var(--t1) 50%,var(--t4) 60%,var(--t3) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:textShimmer 2s linear infinite}
.tn-result{margin-top:4px}
.tn-result-tag{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;background:var(--bg2);border-radius:6px;font-size:12px;color:var(--t4);cursor:pointer;transition:all .15s;border:none;font-family:'JetBrains Mono',monospace}
.tn-result-tag:hover{background:var(--bg3);color:var(--t3)}
.tn-result-tag svg{width:12px;height:12px;transition:transform .25s var(--ease-out);stroke:currentColor;fill:none;stroke-width:2}
.tn-result-tag.open svg{transform:rotate(90deg)}
.tn-result-body{display:none;padding:8px 12px;margin-top:4px;background:var(--bg2);border-radius:var(--radius-s);font-size:12px;color:var(--t3);line-height:1.6;max-height:200px;overflow-y:auto;word-break:break-word}
.tn-result-body.open{display:block}

/* Streaming tool timeline */
.str-tools{margin:4px 0 8px}
.str-tl-header{display:flex;align-items:center;gap:8px;padding:4px 0;cursor:pointer;-webkit-tap-highlight-color:transparent}
.str-tl-header .stl-arrow{width:14px;height:14px;flex-shrink:0;transition:transform .25s var(--ease-out);stroke:var(--t4);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.str-tl-header.open .stl-arrow{transform:rotate(90deg)}
.str-tl-header .stl-summary{font-size:13px;color:var(--t3);font-weight:500}
.stl-done-badge{font-size:11px;color:var(--success);margin-left:4px;flex-shrink:0}
.str-tl-header.stl-loading .stl-summary{background:linear-gradient(90deg,var(--t3) 0%,var(--t4) 40%,var(--t1) 50%,var(--t4) 60%,var(--t3) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:textShimmer 2s linear infinite}
.str-tl-body{padding-left:28px;position:relative;display:none}
.str-tl-header.open+.str-tl-body{display:block}
.str-tl-body::before{content:'';position:absolute;left:8px;top:6px;bottom:6px;width:1.5px;background:var(--border)}
.str-tl-body .tool-node{position:relative;padding:5px 0}
.str-tl-body .tool-node .tn-icon{position:absolute;left:-28px;top:4px;width:18px;height:18px;display:flex;align-items:center;justify-content:center;background:var(--bg);border-radius:50%;z-index:1}
.str-tl-body .tool-node .tn-icon svg{width:14px;height:14px;stroke:var(--t4);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.str-tl-body .tool-node .tn-label{font-size:13px;color:var(--t3);font-weight:400;line-height:1.5}
.str-tl-body .tool-node.tn-loading .tn-label{font-weight:500;background:linear-gradient(90deg,var(--t3) 0%,var(--t4) 40%,var(--t1) 50%,var(--t4) 60%,var(--t3) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:textShimmer 2s linear infinite}
.str-tl-body .tool-node.tn-done .tn-icon svg{stroke:var(--success)}
.str-tl-body .tool-node.tn-done .tn-label{color:var(--t4)}

/* Branch switch loading */
.branch-loading{pointer-events:none;opacity:.5}
.msg-fade-in{animation:fadeUp .3s var(--ease-out)}

/* Thinking block */
.think-wrap{margin-bottom:8px}
.think-toggle{display:flex;align-items:center;gap:6px;padding:4px 0;background:none;border:none;border-radius:0;cursor:pointer;font-size:13px;color:var(--t4);width:100%;text-align:left;transition:color .15s}
.think-toggle:hover{color:var(--t3)}
.think-toggle svg{width:14px;height:14px;transition:transform .25s var(--ease-out);flex-shrink:0}
.think-toggle.open svg{transform:rotate(90deg)}
.think-toggle .tk-label{flex:1}
.think-toggle .tk-time{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--t4)}
.think-body{display:none;padding:8px 14px;margin-top:2px;margin-left:7px;background:transparent;border-left:2px solid var(--border);border-radius:0;font-size:12px;line-height:1.7;color:var(--t4);max-height:300px;overflow-y:auto;white-space:pre-wrap;word-break:break-word}
.think-body.open{display:block}
.think-streaming{display:block;padding:8px 14px;margin-top:2px;margin-left:7px;background:transparent;border-left:2px solid var(--border);border-radius:0;font-size:12px;line-height:1.7;color:var(--t4);max-height:160px;overflow-y:auto;white-space:pre-wrap;word-break:break-word;margin-bottom:4px;font-style:italic}
.str-tk-block{margin-bottom:4px}

/* Claude-style thinking shimmer */
.claude-thinking{display:flex;align-items:center;gap:10px;padding:6px 0;margin-bottom:2px;cursor:pointer;-webkit-tap-highlight-color:transparent}
.claude-thinking .cli-icon{font-size:16px;width:16px;text-align:center;color:var(--accent);font-weight:600;line-height:1}
.claude-thinking .shimmer-text{font-size:14px;font-weight:500;background:linear-gradient(90deg,var(--t3) 0%,var(--t4) 40%,var(--t1) 50%,var(--t4) 60%,var(--t3) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:textShimmer 2s linear infinite}
.claude-thinking .str-tk-arr{width:14px;height:14px;stroke:var(--t4);flex-shrink:0;transition:transform .25s var(--ease-out);margin-left:auto}
@keyframes textShimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.think-fade-out{animation:thinkFadeOut .35s var(--ease-out) forwards;pointer-events:none}
@keyframes thinkFadeOut{from{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-6px)}}
.mc-fade-in{animation:mcFadeIn .4s var(--ease)}
@keyframes mcFadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* Streaming cursor */
.scur::after{content:'';display:inline-block;width:2.5px;height:1.15em;background:var(--accent);margin-left:2px;vertical-align:text-bottom;border-radius:1px;animation:cursorPulse 1s ease-in-out infinite}
@keyframes cursorPulse{0%,100%{opacity:1}50%{opacity:0.3}}

#empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:12px;padding:40px}
#empty .elogo{width:48px;height:48px;display:flex;align-items:center;justify-content:center;margin-bottom:4px;opacity:.8}
#empty .elogo svg{width:48px;height:48px}
#empty .etitle{font-size:26px;font-weight:500;color:var(--t3);text-align:center;line-height:1.4;letter-spacing:-0.02em}
#empty p{font-size:15px;color:var(--t4);display:none}

/* Skeleton loading */
.msg-skel{display:flex;flex-direction:column;gap:12px;padding:12px 0;animation:skelFade .8s ease-in-out infinite alternate}
.msg-skel .sk-row{height:14px;background:var(--bg3);border-radius:6px;opacity:0.4}
.msg-skel .sk-avatar{width:28px;height:28px;border-radius:50%;background:var(--bg3);opacity:0.4;flex-shrink:0}
.msg-skel .sk-wrap{display:flex;gap:10px;align-items:flex-start}
.msg-skel .sk-lines{flex:1;display:flex;flex-direction:column;gap:8px}
@keyframes skelFade{from{opacity:0.5}to{opacity:1}}

/* Input */
#input-area{padding:0 16px 16px;padding-bottom:calc(16px + var(--safe-bottom));background:linear-gradient(transparent,var(--bg) 20%)}
#input-card{max-width:700px;margin:0 auto;border:1px solid var(--input-border);border-radius:var(--radius-xl);overflow:hidden;background:var(--input-bg);transition:border-color .2s,box-shadow .2s;box-shadow:0 2px 12px rgba(0,0,0,0.04)}
#input-card:focus-within{border-color:rgba(174,86,48,.25);box-shadow:0 2px 20px rgba(0,0,0,0.06),0 0 0 1px rgba(174,86,48,.1)}
#msg-input{width:100%;padding:16px 18px 8px;border:none;background:none;font-size:15px;line-height:1.5;resize:none;outline:none;max-height:160px;min-height:36px;color:var(--t1)}
#msg-input::placeholder{color:var(--t4)}
#toolbar{display:flex;align-items:center;padding:6px 12px 12px;gap:2px}
.tb-btn{width:32px;height:32px;border:none;background:none;border-radius:var(--radius-s);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s;color:var(--t3)}
.tb-btn:hover{background:var(--bg2);color:var(--t2)}
.tb-btn:active{background:var(--bg3);transform:scale(.92)}
.tb-btn svg{width:18px;height:18px}
.tb-tag{border:none;background:var(--bg2);color:var(--t3);font-size:12px;padding:4px 10px;border-radius:var(--radius-s);cursor:pointer;font-family:'JetBrains Mono',monospace;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:all .15s}
.tb-tag:hover{background:var(--bg3);color:var(--t2)}
.tb-spacer{flex:1}
#send-btn{width:34px;height:34px;border:none;background:var(--bg3);color:var(--card);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s var(--ease-out)}
#send-btn.ready{background:var(--accent);transform:scale(1.05)}
#send-btn:active{transform:scale(.9)}
#stop-btn{width:34px;height:34px;border:none;background:var(--bg3);color:var(--t1);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s}
#stop-btn:active{transform:scale(.9)}

/* Attach preview */
#attach-preview{display:none;padding:8px 12px 0;gap:8px;flex-wrap:wrap}
#attach-preview.on{display:flex}
.att-item{display:flex;align-items:center;gap:8px;background:var(--bg2);border-radius:var(--radius-m);padding:6px 10px;font-size:13px;color:var(--t2);max-width:100%;border:1px solid var(--border);transition:all .15s}
.att-item img{width:36px;height:36px;border-radius:6px;object-fit:cover;flex-shrink:0}
.att-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.att-rm{border:none;background:none;color:var(--t4);cursor:pointer;padding:2px;display:flex;flex-shrink:0;transition:all .15s}
.att-rm:hover{color:var(--danger)}

/* ===== Settings ===== */
#settings{position:fixed;inset:0;background:var(--bg);z-index:200;overflow:hidden;transform:translateY(100%);opacity:0;transition:transform .45s var(--ease),opacity .4s ease,visibility 0s .45s;pointer-events:none;visibility:hidden}
#settings.on{transform:translateY(0);opacity:1;pointer-events:auto;visibility:visible;transition:transform .45s var(--ease),opacity .4s ease,visibility 0s}
.sp{position:absolute;inset:0;display:flex;flex-direction:column;background:var(--bg);overflow-y:auto;-webkit-overflow-scrolling:touch;transform:translateX(100%);transition:transform .35s var(--ease);z-index:1}
.sp.on{transform:translateX(0)}.sp.root{transform:translateX(0)}.sp.out{transform:translateX(-30%);opacity:.6}
.sp-hd{position:sticky;top:0;z-index:10;background:var(--bg);padding:14px 16px;padding-top:calc(14px + var(--safe-top));display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--border)}
.sp-bk{border:none;background:none;color:var(--t1);cursor:pointer;display:flex;align-items:center;padding:4px;border-radius:6px;transition:all .15s}
.sp-bk:hover{background:var(--bg2)}
.sp-bk:active{transform:scale(.9)}
.sp-hd h1{font-size:18px;font-weight:600;flex:1}
.sp-hd .sp-add{border:none;background:none;color:var(--accent);font-size:14px;cursor:pointer;padding:4px 8px;border-radius:6px;transition:all .15s}
.sp-hd .sp-add:hover{background:var(--bg2)}
.sp-bd{padding:16px 16px 40px;padding-bottom:calc(40px + var(--safe-bottom))}

.sg{margin-bottom:24px}
.sg-l{font-size:12px;color:var(--t3);padding:0 4px 6px;font-weight:500;text-transform:uppercase;letter-spacing:.3px}
.sl{background:var(--card);border-radius:var(--radius-m);overflow:hidden;border:1px solid var(--border)}
.sr{display:flex;align-items:center;padding:12px 16px;gap:14px;cursor:pointer;transition:all .12s;position:relative;min-height:48px}
.sr:hover{background:var(--bg2)}
.sr:active{background:var(--bg3)}
.sr:not(:last-child)::after{content:'';position:absolute;bottom:0;left:52px;right:0;height:1px;background:var(--sep)}
.sr-icon{width:22px;height:22px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--t3)}
.sr-icon svg{width:20px;height:20px}
.sr-body{flex:1;min-width:0}
.sr-title{font-size:15px}
.sr-desc{font-size:12px;color:var(--t3);margin-top:1px}
.sr-val{font-size:14px;color:var(--t3);flex-shrink:0}
.sr-chev{color:var(--t4);flex-shrink:0;transition:transform .15s}
.sr:hover .sr-chev{transform:translateX(2px)}
.sr.dim{opacity:.4;cursor:default}
.sr.dim:hover{background:transparent}
.sr.dim:hover .sr-chev{transform:none}

/* Sub-page card */
.sc{background:var(--card);border-radius:var(--radius-m);overflow:hidden;margin-bottom:12px;border:1px solid var(--border)}
.si{display:flex;align-items:center;padding:14px 16px;gap:12px;position:relative}
.si:not(:last-child)::after{content:'';position:absolute;bottom:0;left:16px;right:0;height:1px;background:var(--sep)}
.si-info{flex:1;min-width:0}
.si-n{font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.si-d{font-size:12px;color:var(--t3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.si-acts{display:flex;gap:8px;align-items:center;flex-shrink:0}
.si-btn{border:none;background:none;color:var(--accent);font-size:13px;cursor:pointer;padding:4px 8px;border-radius:6px;transition:all .15s}
.si-btn:hover{background:var(--bg2)}
.si-btn.del{color:var(--danger)}
.sp-empty{text-align:center;padding:32px 16px;color:var(--t4);font-size:14px}

/* Form */
.sf{background:var(--card);border-radius:var(--radius-m);overflow:hidden;margin-bottom:12px;border:1px solid var(--border)}
.sf-row{padding:12px 16px;position:relative}
.sf-row:not(:last-child)::after{content:'';position:absolute;bottom:0;left:16px;right:0;height:1px;background:var(--sep)}
.sf-row label{font-size:12px;color:var(--t3);display:block;margin-bottom:4px;font-weight:500}
.sf-row input,.sf-row select,.sf-row textarea{width:100%;padding:8px 0;border:none;background:none;font-size:15px;color:var(--t1);outline:none}
.sf-row textarea{min-height:60px;resize:none;line-height:1.5}
.mt-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.mt-title{font-size:15px;font-weight:500;color:var(--t1)}
.mt-key{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--t4);margin-top:1px}
.mt-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:420px){.mt-grid{grid-template-columns:1fr}}
.core-label-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:14px 0 6px}
.core-label{display:block;margin:0;font-size:12px;color:var(--t3);font-weight:600}
.core-edit-btn{width:28px;height:28px;border:none;background:transparent;color:var(--t4);display:flex;align-items:center;justify-content:center;border-radius:8px;cursor:pointer;transition:background .15s,color .15s}
.core-edit-btn:hover{background:var(--bg2);color:var(--accent)}
.core-edit-btn svg{width:16px;height:16px}
.core-prompt-ta{min-height:240px;font-size:14px;line-height:1.7;resize:vertical}
.core-prompt-ta.rules-ta{min-height:150px}
.core-meta{font-size:12px;color:var(--t4);text-align:right;margin-top:4px}
.core-actions{position:sticky;bottom:0;display:flex;align-items:center;gap:8px;margin:14px -2px 0;padding:10px 2px;background:linear-gradient(to top,var(--bg) 80%,rgba(255,255,255,0));z-index:2}
.core-actions #prompt-len{font-size:12px;color:var(--t4);flex:1}
.prompt-preview{display:none;white-space:pre-wrap;word-break:break-word;margin:8px 0 0;padding:12px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-s);font-size:12px;line-height:1.6;color:var(--t2);max-height:260px;overflow:auto;font-family:'JetBrains Mono',monospace}
.prompt-preview.on{display:block}
.seg-ctrl{display:flex;background:var(--bg2);border-radius:var(--radius-s);padding:2px;gap:1px}
.seg-btn{flex:1;padding:7px 2px;border:none;background:none;border-radius:6px;font-size:12px;color:var(--t3);cursor:pointer;transition:all .2s var(--ease-out);white-space:nowrap}
.seg-btn.on{background:var(--card);color:var(--t1);font-weight:500;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.sf-btns{display:flex;gap:12px;justify-content:flex-end;padding:12px 0}

/* Toggle */
.tgl{position:relative;width:48px;height:28px;flex-shrink:0}
.tgl input{display:none}
.tgl span{position:absolute;inset:0;background:var(--bg3);border-radius:14px;transition:.3s var(--ease-out);cursor:pointer}
.tgl span::before{content:'';position:absolute;width:24px;height:24px;left:2px;top:2px;background:#fff;border-radius:50%;transition:.3s var(--ease);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.tgl input:checked+span{background:var(--accent)}
.tgl input:checked+span::before{transform:translateX(20px)}

/* Badge */
.badge{font-size:11px;padding:2px 8px;border-radius:4px;font-weight:500}
.b-blue{background:rgba(174,86,48,.1);color:var(--accent)}
.b-orange{background:rgba(234,88,12,.1);color:#EA580C}
.b-green{background:rgba(22,163,74,.1);color:var(--success)}
.b-red{background:rgba(220,38,38,.1);color:var(--danger)}

/* Range slider */
input[type="range"]{-webkit-appearance:none;height:4px;background:var(--bg3);border-radius:2px;outline:none;margin:8px 0}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;background:var(--card);border-radius:50%;box-shadow:0 1px 4px rgba(0,0,0,.15);cursor:pointer;border:2px solid var(--accent);transition:box-shadow .15s}
input[type="range"]::-webkit-slider-thumb:hover{box-shadow:0 1px 6px rgba(174,86,48,.3)}

/* Tool blocks */
.tn-result-body a{color:var(--accent);text-decoration:none}
.tn-result-body a:hover{text-decoration:underline}
.search-item{padding:8px 0;border-bottom:1px solid var(--bg3)}
.search-item:last-child{border-bottom:none}
.search-title{font-weight:500;color:var(--accent);font-size:14px;display:block;margin-bottom:2px}
.search-url{font-size:11px;color:var(--t4);font-family:'JetBrains Mono',monospace;display:block;margin-bottom:4px;word-break:break-all}
.search-snip{font-size:13px;color:var(--t3);line-height:1.5}
.dl-link{color:var(--accent);text-decoration:none;font-weight:500;display:inline}
.dl-link:hover{text-decoration:underline}
.dl-btn{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;padding:8px 16px;border-radius:var(--radius-s);font-size:14px;font-weight:500;text-decoration:none;margin:8px 0;transition:all .15s}
.dl-btn:hover{background:var(--accent-hover);text-decoration:none}
.dl-btn:active{transform:scale(.97)}
.dl-btn svg{width:16px;height:16px}

/* Provider detail */
#sp-prov-detail{overflow:hidden!important}
.pd-wrap{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:0 16px 40px}
.pd-tabs{display:flex;padding:8px 16px;padding-bottom:calc(8px + var(--safe-bottom));background:var(--bg);border-top:1px solid var(--border);gap:8px}
.pd-tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px;border:1.5px solid var(--bg3);border-radius:var(--radius-m);background:var(--card);cursor:pointer;transition:all .2s var(--ease-out);font-size:12px;color:var(--t3)}
.pd-tab svg{width:18px;height:18px}
.pd-tab.on{border-color:var(--accent);color:var(--accent);background:rgba(174,86,48,.04)}
.pd-status{display:inline-flex;align-items:center;gap:4px;font-size:13px;padding:3px 10px;border-radius:6px;font-weight:500}
.pd-status.ok{background:rgba(22,163,74,.1);color:var(--success)}
.pd-status.err{background:rgba(220,38,38,.1);color:var(--danger)}
.pd-status.testing{background:rgba(174,86,48,.1);color:var(--accent)}

/* Provider list item */
.prov-item{display:flex;align-items:center;padding:14px 16px;gap:12px;cursor:pointer;position:relative;transition:all .12s}
.prov-item:hover{background:var(--bg2)}
.prov-item:active{background:var(--bg3)}
.prov-item:not(:last-child)::after{content:'';position:absolute;bottom:0;left:60px;right:0;height:1px;background:var(--sep)}
.prov-icon{width:34px;height:34px;border-radius:var(--radius-s);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0;color:#fff}
.prov-info{flex:1;min-width:0}
.prov-name{font-size:15px;font-weight:500}

/* Note card */
.nc{padding:14px 16px;background:var(--card);border-radius:var(--radius-m);margin-bottom:8px;border:1px solid var(--border);transition:all .15s}
.nc:hover{border-color:var(--bg3)}
.nc.pin{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.nc-tag{font-size:12px;color:var(--t3);margin-bottom:4px}
.nc-tag .ai{color:var(--success)}
.nc-body{font-size:14px;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.nc-acts{display:flex;gap:8px;margin-top:8px;justify-content:flex-end}
.nc-btn{border:none;background:none;color:var(--t3);font-size:13px;cursor:pointer;padding:4px 8px;border-radius:6px;transition:all .15s}
.nc-btn:hover{background:var(--bg2);color:var(--t2)}
.nc-header{display:flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none}
.nc-header .nc-arrow{width:14px;height:14px;transition:transform .25s var(--ease-out);flex-shrink:0;color:var(--t4)}
.nc-header.open .nc-arrow{transform:rotate(90deg)}
.nc-header .nc-preview{flex:1;font-size:13px;color:var(--t3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.nc-header.open .nc-preview{display:none}
.nc-detail{display:none}
.nc-header.open+.nc-detail{display:block}
.nc-time{font-size:11px;color:var(--t4);margin-top:6px;font-family:'JetBrains Mono',monospace}
.note-fs-overlay{position:fixed;inset:0;z-index:350;background:var(--bg);display:flex;flex-direction:column;padding:0;padding-top:var(--safe-top)}
.note-fs-hd{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border)}
.note-fs-hd button{border:none;background:none;font-size:15px;color:var(--accent);cursor:pointer;padding:6px 12px;font-weight:500;font-family:inherit;transition:opacity .15s}
.note-fs-hd button:active{opacity:.6}
.note-fs-hd .nfs-cancel{color:var(--t3)}
.note-fs-title{font-size:14px;font-weight:600;color:var(--t2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.note-fs-ta{flex:1;padding:16px;border:none;background:var(--bg);font-size:15px;line-height:1.7;resize:none;outline:none;color:var(--t1);font-family:inherit}
.mm-icon img{width:100%;height:100%;border-radius:50%;object-fit:cover}
.avatar-upload{width:72px;height:72px;border-radius:50%;border:2px dashed var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;overflow:hidden;transition:all .2s;background:var(--bg2)}
.avatar-upload:hover{border-color:var(--accent);background:rgba(174,86,48,.04)}
.avatar-upload img{width:100%;height:100%;object-fit:cover}
.avatar-upload svg{color:var(--t4)}

/* Btn */
.btn{padding:10px 20px;border-radius:var(--radius-m);border:none;font-size:15px;cursor:pointer;font-weight:500;transition:all .15s var(--ease-out)}
.btn:active{transform:scale(.97)}
.btn-p{background:var(--accent);color:#fff}
.btn-p:hover{background:var(--accent-hover)}
.btn-g{background:var(--bg2);color:var(--t2)}
.btn-g:hover{background:var(--bg3)}
.btn-d{background:var(--danger);color:#fff}
.btn-d:hover{background:#B91C1C}
.btn-s{padding:7px 16px;font-size:14px;border-radius:var(--radius-s)}

/* Modal */
.mo{display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:300;align-items:center;justify-content:center;padding:24px;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.mo.on{display:flex}
.mo-box{background:var(--card);border-radius:var(--radius-l);width:100%;max-width:300px;padding:24px;text-align:center;animation:modalPop .25s var(--ease)}
@keyframes modalPop{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}
.mo-box h3{font-size:17px;font-weight:600;margin-bottom:6px}
.mo-box p{font-size:14px;color:var(--t3);margin-bottom:20px}
.mo-btns{display:flex;gap:8px}
.mo-btns .btn{flex:1}

/* Partial / unconfirmed badges */
.msg-badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;padding:2px 8px;border-radius:10px;margin-top:6px;font-weight:500;letter-spacing:.2px}
.msg-badge svg{flex-shrink:0}
.part-badge{background:var(--bg2);color:var(--t3);border:1px solid var(--border)}
.unconf-badge{background:rgba(220,38,38,.08);color:var(--danger);border:1px solid rgba(220,38,38,.2)}
.msg.user.unconfirmed .mc{opacity:.7;border:1px dashed rgba(220,38,38,.3)}

/* Edit */
.msg.user.editing{justify-content:stretch}
.msg.user.editing .mc{max-width:100%;width:100%;background:transparent;padding:0;border-radius:0;border:none}
.ed-ta{width:100%;padding:12px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-m);font-size:15px;line-height:1.5;resize:vertical;outline:none;color:var(--t1);min-height:80px;max-height:60vh;overflow-y:auto;transition:border-color .2s;font-family:inherit;display:block;box-sizing:border-box}
.ed-ta:focus{border-color:var(--accent)}
.ed-btns{display:flex;gap:8px;margin-top:8px;justify-content:flex-end}

/* Toast */
#toast{position:fixed;top:calc(60px + var(--safe-top));left:50%;transform:translateX(-50%) translateY(-20px);background:var(--t1);color:var(--card);padding:10px 24px;border-radius:var(--radius-m);font-size:14px;z-index:500;opacity:0;transition:all .35s var(--ease);pointer-events:none;box-shadow:0 4px 16px rgba(0,0,0,.12)}
#toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

/* Rename */
.rn-in{width:100%;padding:8px 12px;background:var(--bg2);border:2px solid var(--accent);border-radius:var(--radius-s);font-size:14px;color:var(--t1);outline:none}

@media(min-width:769px){
  #sidebar{width:280px;position:relative;transform:none;border-right:1px solid var(--border);pointer-events:auto;visibility:visible}
  #sidebar.on{transform:none}
  #sb-overlay{display:none!important}
  #main{flex:1}
  #app{display:flex}
  .h-toggle{display:none}
  #msgs{padding:16px 40px 32px}
  #input-area{padding:0 40px 16px;padding-bottom:calc(16px + var(--safe-bottom))}
  .msg-acts{opacity:0}.msg:hover .msg-acts{opacity:1}
}

/* === Memory Cards Browser === */
.mem-search-wrap{padding:0 16px 12px}
.mem-search-wrap input{width:100%;padding:10px 14px;background:var(--input-bg,var(--bg2));border:1px solid var(--input-border,var(--border));border-radius:var(--radius-m,12px);font-size:14px;color:var(--t1);outline:none}
.mem-search-wrap input:focus{border-color:var(--accent)}
.mem-filters{display:flex;gap:6px;padding:0 16px 12px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.mem-filters::-webkit-scrollbar{display:none}
.mem-pill{padding:5px 12px;border-radius:16px;font-size:12px;border:1px solid var(--border);background:var(--bg2);color:var(--t2);cursor:pointer;white-space:nowrap;transition:all .2s}
.mem-pill.active,.mem-pill:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.mem-sort{display:flex;gap:8px;padding:0 16px 12px}
.mem-sort-btn{padding:5px 14px;border-radius:16px;font-size:12px;border:1px solid var(--border);background:var(--bg2);color:var(--t3);cursor:pointer;transition:all .2s}
.mem-sort-btn.active{background:var(--t1);color:var(--bg);border-color:var(--t1)}
.mem-timeline{padding:0 16px;max-width:640px;margin:0 auto}
.mem-card{background:var(--card);border-radius:var(--radius-m,12px);padding:14px 16px;margin-bottom:10px;cursor:pointer;transition:all .2s var(--ease,ease);border-left:3px solid #9B8EC4;position:relative}
.mem-card.warm{border-left-color:#5B8AD4}
.mem-card[data-imp="mid"]{border-left-width:4px}
.mem-card[data-imp="high"]{border-left-width:5px;box-shadow:0 0 0 1px rgba(174,86,48,.15)}
.mem-card:hover{transform:translateY(-1px);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.mem-card-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.mem-card-time{font-size:12px;color:var(--t3)}
.mem-card-cat{font-size:11px;padding:2px 8px;border-radius:10px;background:var(--bg3);color:var(--t2)}
.mem-card-content{font-size:14px;color:var(--t1);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mem-card.expanded .mem-card-content{-webkit-line-clamp:unset;overflow:visible}
.mem-card-detail{display:none;margin-top:10px;padding-top:10px;border-top:1px solid var(--sep)}
.mem-card.expanded .mem-card-detail{display:block}
.mem-card-tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:6px}
.mem-tag{font-size:11px;padding:2px 8px;border-radius:8px;background:var(--bg3);color:var(--t3)}
.mem-card-meta{font-size:11px;color:var(--t4);display:flex;flex-wrap:wrap;gap:8px}
.mem-empty{text-align:center;padding:48px 20px;color:var(--t3);font-size:14px}
.mem-loading{text-align:center;padding:16px;color:var(--t3);font-size:13px}
.mem-sentinel{height:1px}
.mem-random-fab{position:absolute;bottom:24px;right:24px;width:44px;height:44px;border-radius:50%;background:var(--accent);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.15);transition:transform .2s}
.mem-random-fab:hover{transform:scale(1.1)}
.mem-random-card{padding:4px 0}
@media(max-width:600px){
  .mem-timeline{padding:0 12px}
  .mem-random-fab{bottom:16px;right:16px}
}
.usg-range{display:flex;gap:8px;padding:0 0 14px;flex-wrap:wrap}
.usg-range-btn{padding:6px 16px;border-radius:16px;font-size:13px;border:1px solid var(--border);background:var(--bg2);color:var(--t3);cursor:pointer;transition:all .15s}
.usg-range-btn.on{background:var(--t1);color:var(--bg);border-color:var(--t1)}
.usg-tbl{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-m,12px);overflow:hidden;margin-bottom:8px;font-size:13px}
.usg-tbl-h{display:flex;align-items:center;padding:10px 14px;background:var(--bg2);font-size:11px;color:var(--t4);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--sep)}
.usg-tbl-r{display:flex;align-items:center;padding:10px 14px;border-bottom:1px solid var(--sep);gap:8px}
.usg-tbl-r:last-child{border-bottom:none}
.usg-r{flex:1;text-align:right;font-variant-numeric:tabular-nums}

/* === Infinite scroll: date divider / loader / partial banner === */
.date-divider{text-align:center;margin:14px 0 6px;font-size:11px;color:var(--t4);user-select:none}
.date-divider span{background:var(--bg-soft);padding:3px 10px;border-radius:10px}
.msgs-loader{text-align:center;padding:8px;font-size:12px;color:var(--t4);user-select:none}
.partial-banner{position:sticky;bottom:8px;display:flex;justify-content:center;pointer-events:none;z-index:10}
.partial-banner button{pointer-events:auto;background:var(--accent);color:#fff;border:0;border-radius:16px;padding:6px 14px;font-size:12px;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,0.2);transition:background .15s}
.partial-banner button:hover{background:var(--accent-hover)}

/* === 当前对话日历模态框 === */
.conv-cal-box{max-width:340px;width:90vw;padding:16px}
.cal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.cal-title{font-weight:600;font-size:15px;color:var(--t1)}
.cal-nav{background:none;border:none;color:var(--t3);cursor:pointer;padding:6px 10px;border-radius:6px;display:flex;align-items:center;justify-content:center}
.cal-nav svg{width:18px;height:18px}
.cal-nav:hover{background:var(--bg-soft);color:var(--t1)}
.cal-wk-row{display:grid;grid-template-columns:repeat(7,1fr);gap:2px;margin-bottom:4px}
.cal-wk{text-align:center;font-size:11px;color:var(--t4);padding:4px 0}
.cal-days{display:grid;grid-template-columns:repeat(7,1fr);gap:2px}
.cal-day{aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--t3);border-radius:6px;cursor:default;user-select:none}
.cal-day-empty{visibility:hidden}
.cal-day-today{outline:1px solid var(--t4);outline-offset:-2px}
.cal-day-active{background:var(--accent);color:#fff;cursor:pointer;font-weight:500}
.cal-day-active:hover{background:var(--accent-hover)}
.cal-loading{padding:40px 0;text-align:center;color:var(--t4);font-size:13px;grid-column:1/-1}