/* Hermes 工作区 —— 视觉与交互对齐 POMPOM 界面 */

:root{
  --bg:#ffffff;
  --surface:#ffffff;
  --surface-soft:#f5f6f7;
  --surface-muted:#f9fafb;
  --sidebar:#f5f6f7;
  --fg:#0f1115;
  --fg2:#61666b;
  --fg3:#767b82;
  --tab-fg:#34373c;
  --accent:#4176e6;
  --accent-b:#eaf0fd;
  --ok:#3b9d65;
  --warn:#a96b12;
  --err:#c53a32;
  --border:#e5e7eb;
  --border-strong:#dfe1e5;
  --focus-border:#a5bceb;
  --code:#f7f8fa;
  --inline-code:#f0f1f3;
  --error-bg:#fff2f0;
  --error-border:#f3d1cc;
  --quote-border:#d4d8e0;
  --placeholder:#747980;
  --disabled-bg:#f0f1f3;
  --disabled-fg:#747980;
  --tab-active:#e8eaee;
  --badge:#eef0f3;
  --on-accent:#ffffff;
  --scrim:rgba(0,0,0,.24);
  --shadow:rgba(15,17,21,.03);
  --drawer-shadow:rgba(0,0,0,.04);
  --focus-ring:rgba(65,118,230,.04);
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-t:env(safe-area-inset-top,0px);
  --control-radius:12px;
  --row-radius:12px;
  --icon-size:20px;
  --logo-blend:multiply;
  --logo-filter:none;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0f1115;
    --surface:#16181d;
    --surface-soft:#1b1e24;
    --surface-muted:#16181d;
    --sidebar:#16181d;
    --fg:#e8e8ea;
    --fg2:#9aa0a6;
    --fg3:#9aa0a6;
    --tab-fg:#d6d8dc;
    --accent:#4176e6;
    --accent-b:rgba(65,118,230,.18);
    --ok:#6fd19c;
    --warn:#f6b85a;
    --err:#ff8a80;
    --border:rgba(255,255,255,.08);
    --border-strong:rgba(255,255,255,.12);
    --focus-border:#668fe8;
    --code:#191c22;
    --inline-code:#24272e;
    --error-bg:rgba(255,138,128,.10);
    --error-border:rgba(255,138,128,.28);
    --quote-border:rgba(255,255,255,.20);
    --placeholder:#9aa0a6;
    --disabled-bg:#24272e;
    --disabled-fg:#9aa0a6;
    --tab-active:#24272e;
    --badge:#24272e;
    --scrim:rgba(0,0,0,.58);
    --shadow:rgba(0,0,0,.22);
    --drawer-shadow:rgba(0,0,0,.34);
    --focus-ring:rgba(65,118,230,.20);
    --logo-blend:screen;
    --logo-filter:invert(1) hue-rotate(180deg);
  }
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  -webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased;
}
.hidden{display:none!important}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
svg.icon{width:var(--icon-size);height:var(--icon-size);flex:none}

/* ---------- 登录 ---------- */
.login{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg)}
.login-card{width:100%;max-width:340px;display:flex;flex-direction:column;align-items:stretch;gap:14px;text-align:center}
.login-mark{width:96px;height:auto;margin:0 auto 6px}
.logo-img{mix-blend-mode:var(--logo-blend);filter:var(--logo-filter)}
.login-card h1{margin:0;font-size:22px;font-weight:600;letter-spacing:-.4px}
.login-card .sub{margin:0;color:var(--fg3);font-size:13px}
.login-card input{width:100%;padding:12px 14px;border-radius:var(--control-radius);border:1px solid var(--border-strong);
  background:var(--surface);color:var(--fg);font-size:16px;outline:none;transition:border-color .15s,box-shadow .15s}
.login-card input:focus{border-color:var(--focus-border);box-shadow:0 0 0 2px var(--focus-ring)}
.login-card button{padding:12px;border-radius:var(--control-radius);font-weight:600;font-size:14px;
  background:var(--accent);color:var(--on-accent)}
.login-card button:disabled{background:var(--disabled-bg);color:var(--disabled-fg)}
.error{min-height:18px;margin:0;color:var(--err);font-size:12.5px}

/* ---------- 骨架 ---------- */
.shell{display:flex;height:100dvh;overflow:hidden;background:var(--bg)}

/* 侧栏 */
.sidebar{width:280px;flex:0 0 280px;display:flex;flex-direction:column;background:var(--sidebar);
  border-right:1px solid var(--border);padding:var(--safe-t) 0 var(--safe-b)}
.sidebar-brand{height:104px;min-height:104px;display:flex;justify-content:center;align-items:center;position:relative;
  border-bottom:1px solid var(--border);margin-bottom:12px}
.sidebar-brand img{width:88px;height:auto}
.brand-logo{mix-blend-mode:var(--logo-blend);filter:var(--logo-filter)}
.sidebar-brand .hbtn{display:none;position:absolute;right:7px;top:6px}
.newc{margin:0 12px 14px;border:1px solid var(--border-strong);border-radius:9px;background:var(--surface);
  box-shadow:0 2px 3px var(--shadow);display:flex;align-items:center;justify-content:center;gap:9px;
  font-size:13px;min-height:44px;color:var(--fg)}
.newc:hover{background:var(--surface-soft)}
.tabbar{display:flex;flex-direction:column;padding:0 12px 15px;gap:2px;border-bottom:1px solid var(--border)}
.tabbar button{display:flex;align-items:center;gap:12px;text-align:left;padding:0 10px;border-radius:8px;
  color:var(--tab-fg);font-size:13px;min-height:44px;transition:background-color .15s,color .15s}
.tabbar button svg.icon{width:18px;height:18px}
.tabbar button.active{background:var(--tab-active);color:var(--fg)}
.tabbar button:hover{background:var(--tab-active)}
.convlist{flex:1;min-height:0;overflow-y:auto;padding:0 12px 12px}
.conv-section{padding:9px 10px 5px;font-size:10px;color:var(--fg3)}
.session-list{display:flex;flex-direction:column;gap:3px}
.session-item{display:flex;align-items:center;gap:8px;min-height:44px;padding:8px 10px;border-radius:var(--row-radius);
  font-size:13px;color:var(--fg);transition:background-color .15s}
.session-item:hover{background:var(--tab-active)}
.session-item.active{background:var(--tab-active)}
.session-item .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.src-badge{flex:none;font-size:10px;color:var(--fg3);background:var(--badge);border-radius:6px;padding:1px 6px}
.session-item .del{opacity:0;color:var(--fg3);padding:0 4px;font-size:15px}
.session-item:hover .del{opacity:1}
.session-empty{padding:14px 10px;font-size:12px;color:var(--fg3)}
.sidebar-footer{padding:14px 18px;border-top:1px solid var(--border-strong);display:flex;align-items:center;
  gap:10px;font-size:12px;color:var(--fg2)}
.status{display:flex;align-items:center;gap:7px;flex:1;min-width:0}
.status .dot{width:7px;height:7px;border-radius:50%;background:var(--fg3);flex:0 0 7px}
.status.online .dot{background:var(--ok)}
.status.offline .dot{background:var(--err)}
.linkbtn{color:var(--fg3);font-size:12px}
.linkbtn:hover{color:var(--accent)}

/* 主区 */
.main{flex:1;display:flex;flex-direction:column;min-width:0;position:relative;background:var(--bg)}
.topbar{flex:none;display:flex;align-items:center;gap:4px;min-height:56px;padding:calc(var(--safe-t) + 4px) 10px 4px;
  background:var(--surface);z-index:20}
.hbtn{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:var(--control-radius);
  color:var(--fg2);transition:background-color .15s,color .15s}
.hbtn:hover{background:var(--surface-soft);color:var(--fg)}
.head-title{display:flex;align-items:center;gap:8px;min-width:0;flex:1;padding:0 4px}
.head-title strong{font-size:14.5px;font-weight:550;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{font-size:11px;color:var(--fg3);background:var(--badge);border-radius:999px;padding:2px 8px;white-space:nowrap}

.panel{display:none;flex:1;min-height:0;flex-direction:column}
.panel.active{display:flex}

/* 消息区 */
.thread{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:18px;
  padding:20px 16px 8px;overscroll-behavior:contain;scroll-behavior:smooth}
.thread > *{width:100%;max-width:880px;margin:0 auto}
.empty{margin:auto 0;text-align:center;padding:32px 0 50px;color:var(--fg3);font-size:13px;line-height:1.9}
.empty-mark{width:104px;height:auto;display:block;margin:0 auto 20px}
.empty b{display:block;font-size:22px;line-height:1.4;color:var(--fg);margin-bottom:12px;font-weight:550;letter-spacing:-.4px}
.empty p{margin:0}
.empty .hint{font-size:12px;color:var(--fg3);margin-top:20px}

.msg{display:flex;gap:10px;max-width:880px;margin:0 auto;width:100%}
.msg .avatar{display:none}
.msg .body{min-width:0;flex:1;display:flex;flex-direction:column}
.msg .who{display:none}
.msg.assistant .who{display:block;font-size:11px;color:var(--fg3);margin:0 0 6px;letter-spacing:.2px}
.msg.user{justify-content:flex-end}
.msg.user .body{align-items:flex-end}
.msg .content{overflow-wrap:anywhere;min-width:0}
.msg.user .content{background:var(--surface-soft);border-radius:14px;padding:10px 14px;max-width:100%}
.msg.assistant .content{background:none;border:0;padding:0;max-width:100%}
.msg.assistant.streaming .content{opacity:.98}
.msg-atts{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 6px;justify-content:flex-end}
.msg.assistant .msg-atts{justify-content:flex-start}
.msg-att-img{width:96px;height:96px;object-fit:cover;border-radius:10px;border:1px solid var(--border);cursor:zoom-in}
.msg-att-file{font-size:12px;color:var(--fg2);background:var(--surface-muted);border:1px solid var(--border);
  border-radius:8px;padding:4px 9px}
.dots{display:inline-flex;gap:4px;align-items:center;height:16px}
.dots i{width:5px;height:5px;border-radius:50%;background:var(--accent);animation:bounce 1.2s infinite}
.dots i:nth-child(2){animation-delay:.15s}.dots i:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,80%,100%{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}
.tool-line{font-size:11.5px;color:var(--fg3);margin-top:6px;display:flex;gap:6px;align-items:center}
.tool-line .spin{width:9px;height:9px;border:2px solid var(--border);border-top-color:var(--accent);
  border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* markdown */
.content h1,.content h2,.content h3{margin:16px 0 8px;line-height:1.4;font-weight:600}
.content h1{font-size:19px}.content h2{font-size:17px}.content h3{font-size:15px}
.content p{margin:9px 0}
.content ul,.content ol{margin:9px 0;padding-left:22px}
.content li{margin:4px 0}
.content a{color:var(--accent);text-decoration:none}
.content a:hover{text-decoration:underline}
.content blockquote{margin:12px 0;padding:4px 12px;border-left:3px solid var(--quote-border);color:var(--fg2)}
.content code{font:13px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--inline-code);
  padding:2px 5px;border-radius:4px}
.content table{border-collapse:collapse;margin:12px 0;display:block;overflow-x:auto;max-width:100%}
.content th,.content td{border:1px solid var(--border);padding:7px 10px;font-size:13px}
.content hr{border:0;border-top:1px solid var(--border);margin:16px 0}
.codeblock{margin:12px 0;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--code)}
.codeblock .cb-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 10px;
  border-bottom:1px solid var(--border);font-size:11px;color:var(--fg3)}
.codeblock .cb-copy{padding:3px 8px;border-radius:7px;border:1px solid var(--border);font-size:11px;color:var(--fg2)}
.codeblock .cb-copy:hover{border-color:var(--accent);color:var(--accent)}
.codeblock pre{margin:0;padding:11px 12px;overflow-x:auto}
.codeblock code{background:none;padding:0;font:13px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre}

/* 输入区 */
.composer-wrap{flex:none;padding:6px 16px calc(8px + var(--safe-b))}
.attachments{max-width:880px;margin:0 auto;display:flex;gap:10px;padding:12px 2px 4px;flex-wrap:nowrap;
  overflow-x:auto;scroll-snap-type:x proximity}
.attachments:empty{display:none}
.att{position:relative;flex:none;scroll-snap-align:start;display:flex;align-items:center;gap:6px;max-width:180px;
  padding:5px 9px;border-radius:10px;border:1px solid var(--border);background:var(--surface-muted);
  font-size:12px;color:var(--fg2)}
.att img{width:58px;height:58px;object-fit:cover;border-radius:10px;border:1px solid var(--border)}
.att .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.att .x{position:absolute;top:-8px;right:-8px;width:22px;height:22px;border-radius:50%;background:var(--surface);
  border:1px solid var(--border);color:var(--fg2);display:flex;align-items:center;justify-content:center;font-size:13px}
.att.loading{opacity:.6}

.composer{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:4px;border:1px solid var(--border-strong);
  border-radius:24px;padding:9px 8px 6px;background:var(--surface);box-shadow:0 2px 8px var(--shadow);
  transition:border-color .15s,box-shadow .15s}
.composer:focus-within{border-color:var(--focus-border);box-shadow:0 0 0 2px var(--focus-ring),0 2px 8px var(--shadow)}
.composer-actions{display:flex;align-items:flex-end;gap:4px;min-height:44px}
#attach-btn{width:44px;height:44px;flex:none}
.composer textarea{flex:1;min-width:0;resize:none;max-height:34dvh;min-height:44px;padding:11px 6px;
  border:0;background:transparent;color:var(--fg);font:inherit;font-size:16px;line-height:1.5;outline:none;overflow-y:auto}
.composer textarea::placeholder{color:var(--placeholder)}
.opt-chip{flex:none;display:inline-flex;align-items:center;gap:4px;height:32px;max-width:132px;padding:0 10px;
  border-radius:16px;border:1px solid var(--border);background:var(--surface-soft);color:var(--fg2);font-size:12px;
  transition:background-color .15s,color .15s,border-color .15s;margin-bottom:6px}
.opt-chip .lbl{color:var(--fg3);font-size:12px;flex:none}
.opt-chip .val{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.opt-chip:hover{background:var(--surface-muted)}
.opt-chip.on{border-color:var(--accent);background:var(--accent-b);color:var(--accent)}
.opt-chip.on .lbl{color:var(--accent)}
.send-btn{width:36px;height:36px;flex:0 0 36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--accent);color:var(--on-accent);margin-bottom:4px}
.send-btn:disabled{background:var(--disabled-bg);color:var(--disabled-fg)}
.hint{max-width:880px;margin:6px auto 0;font-size:11.5px;color:var(--err);min-height:0;line-height:1.4}
.hint:empty{display:none}
.composer-caption{max-width:880px;margin:6px auto 0;text-align:center;font-size:10px;color:var(--fg3);line-height:1.4}

/* 选择面板（桌面浮层，手机底部抽屉） */
.popover{position:absolute;left:50%;transform:translateX(-50%);bottom:104px;z-index:40;width:min(420px,calc(100% - 24px));
  max-height:52dvh;overflow:auto;background:var(--surface);border:1px solid var(--border-strong);border-radius:18px;
  box-shadow:0 18px 40px var(--shadow);padding:8px 10px}
.popover .pick-head{display:flex;align-items:center;justify-content:space-between;padding:6px 6px 8px;
  font-size:13px;color:var(--fg3)}
.popover .pick-head b{font-size:14.5px;color:var(--fg);font-weight:550}
.popover .grp{padding:10px 8px 4px;font-size:12px;color:var(--fg3)}
.popover .item{display:flex;align-items:center;gap:10px;padding:11px 10px;border-radius:12px;font-size:14px;
  transition:background-color .15s}
.popover .item:hover{background:var(--surface-muted)}
.popover .item.sel{background:var(--accent-b);color:var(--accent)}
.popover .item .txt{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.popover .item small{color:var(--fg3);font-size:11.5px;flex:none}
.popover .item .tick{color:var(--accent);flex:none}

/* 信息页 */
.info-page{flex:1;min-height:0;overflow-y:auto;padding:20px 16px calc(20px + var(--safe-b))}
.info-head{max-width:880px;margin:0 auto 16px}
.info-head h2{margin:0 0 4px;font-size:18px;font-weight:600}
.info-head p{margin:0;font-size:13px;color:var(--fg3)}
.cards{max-width:880px;margin:0 auto;display:grid;gap:12px;grid-template-columns:repeat(2,minmax(0,1fr))}
.cards.loading{grid-column:1/-1;padding:36px 18px;text-align:center;color:var(--fg3);font-size:13px}
.card{background:var(--surface-muted);border:1px solid var(--border);border-radius:10px;padding:16px;
  min-width:0;overflow-wrap:anywhere}
.card h3{font-size:14px;font-weight:600;margin:0 0 6px;line-height:1.5}
.card p{font-size:13px;color:var(--fg2);margin:0;line-height:1.65}
.card-meta{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-top:12px;color:var(--fg3);font-size:11px}
.card .chip{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--fg2);background:var(--surface);
  border:1px solid var(--border);padding:4px 9px;border-radius:8px}

/* 遮罩 / 移动端 */
#scrim{position:fixed;inset:0;background:var(--scrim);opacity:0;pointer-events:none;transition:opacity .2s;z-index:30}
#scrim.show{opacity:1;pointer-events:auto}

@media (max-width:560px){
  .composer{padding:8px 6px 6px}
  .composer-actions{flex-wrap:wrap;row-gap:2px}
  .composer textarea{order:-1;flex:1 1 100%;min-height:40px;max-height:30dvh;padding:8px 8px}
  #attach-btn{order:1;width:40px;height:40px}
  #model-btn{order:2;margin-left:auto}
  #think-btn{order:3}
  .send-btn{order:4;margin-bottom:0;width:34px;height:34px;flex-basis:34px}
  .opt-chip .lbl{display:none}
  .opt-chip{max-width:112px;margin-bottom:0;height:34px}
  .composer-wrap{padding:4px 10px calc(6px + var(--safe-b))}
  .thread{padding:14px 12px 6px}
  .msg .content{font-size:15px}
}

@media (max-width:900px){
  .sidebar{position:fixed;inset:0 auto 0 0;width:280px;max-width:calc(100vw - 44px);z-index:31;
    transform:translateX(-102%);transition:transform .2s ease;flex-basis:auto}
  .sidebar.open{transform:none;box-shadow:12px 0 36px var(--drawer-shadow)}
  .sidebar-brand{height:auto;min-height:88px}
  .sidebar-brand .hbtn{display:flex;font-size:22px}
  #menu-btn{display:flex}
  .cards{grid-template-columns:1fr}
  .popover{left:0;right:0;bottom:0;transform:none;width:auto;border-radius:18px 18px 0 0;
    border-bottom:0;max-height:72dvh;padding-bottom:calc(var(--safe-b) + 10px);box-shadow:0 -8px 30px var(--shadow)}
}
@media (min-width:901px){
  #menu-btn{display:none}
  #scrim{display:none}
  .sidebar-brand .hbtn{display:none}
}