/* =========================================
   澜梦AI平台 - 样式
   版权 © 2026 澜梦科技
   ========================================= */
:root{
  --brand:#5b6cff;
  --brand2:#8b5cf6;
  --brand-grad:linear-gradient(135deg,#5b6cff 0%,#8b5cf6 100%);
  --bg:#f4f6fb;
  --card:#ffffff;
  --text:#1a2035;
  --text2:#6b7280;
  --border:#e7eaf2;
  --sb-bg:#0f172a;
  --sb-text:#94a3b8;
  --sb-on:#ffffff;
  --shadow:0 6px 24px rgba(30,41,99,.08);
  --radius:16px;
}
html.dark{
  --bg:#0b1020;
  --card:#131a2e;
  --text:#e6e9f2;
  --text2:#8b93a8;
  --border:#232c46;
  --sb-bg:#080d1c;
  --sb-text:#64748b;
  --shadow:0 6px 24px rgba(0,0,0,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit;border:none;outline:none;background:none;color:inherit}
svg{display:block}

/* ============ 登录页 ============ */
.login-body{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(1200px 600px at 20% -10%,rgba(91,108,255,.18),transparent 60%),
             radial-gradient(900px 500px at 90% 110%,rgba(139,92,246,.16),transparent 60%),
             #f6f7fd;
  padding:20px;
}
html.dark .login-body{
  background:radial-gradient(1200px 600px at 20% -10%,rgba(91,108,255,.14),transparent 60%),
             radial-gradient(900px 500px at 90% 110%,rgba(139,92,246,.12),transparent 60%),
             #0b1020;
}
.login-wrap{width:100%;max-width:420px}
.login-card{
  background:var(--card);border-radius:24px;padding:38px 34px 30px;
  box-shadow:var(--shadow);border:1px solid var(--border);
}
.login-brand{text-align:center;margin-bottom:26px}
.brand-orb{
  width:72px;height:72px;border-radius:22px;margin:0 auto 14px;
  background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 30px rgba(91,108,255,.35);
}
.brand-orb svg{width:38px;height:38px}
.brand-orb.small{width:42px;height:42px;border-radius:13px;margin:0}
.brand-orb.small svg{width:23px;height:23px}
.login-brand h1{font-size:24px;letter-spacing:1px}
.login-brand p{font-size:13px;color:var(--text2);margin-top:6px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text2);margin-bottom:7px}
.field input{
  width:100%;height:46px;padding:0 14px;border-radius:12px;
  border:1px solid var(--border);background:var(--bg);font-size:14px;
  transition:border-color .2s,box-shadow .2s;
}
.field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,108,255,.15)}
.btn-primary{
  height:46px;border-radius:12px;background:var(--brand-grad);color:#fff;
  font-size:15px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  box-shadow:0 8px 20px rgba(91,108,255,.3);transition:transform .15s,box-shadow .15s;
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(91,108,255,.4)}
.btn-primary:active{transform:translateY(0)}
.btn-primary svg{width:17px;height:17px}
.btn-block{width:100%}
.oauth-row{display:flex;gap:12px;margin-top:20px}
.oauth-btn{
  flex:1;height:44px;border-radius:12px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;gap:7px;font-size:14px;color:var(--text);
  background:var(--bg);transition:all .2s;
}
.oauth-btn svg{width:20px;height:20px}
.oauth-wx svg{color:#07c160}
.oauth-qq svg{color:#12b7f5}
.oauth-btn:hover{border-color:var(--brand);transform:translateY(-1px)}
.login-tip{font-size:12px;color:var(--text2);text-align:center;margin-top:14px}

/* ============ 主布局 ============ */
.app{display:flex;height:100vh;overflow:hidden}
.sidebar{
  width:236px;background:var(--sb-bg);color:var(--sb-text);
  display:flex;flex-direction:column;flex-shrink:0;
}
.sb-brand{display:flex;align-items:center;gap:12px;padding:18px 16px 14px}
.sb-brand-t strong{display:block;color:#fff;font-size:15px;letter-spacing:.5px}
.sb-brand-t span{font-size:11px;color:var(--sb-text)}
.sb-new{
  margin:4px 14px 14px;height:42px;border-radius:11px;background:rgba(255,255,255,.08);
  color:#e6e9f2;display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;
  transition:background .2s;
}
.sb-new:hover{background:rgba(255,255,255,.15)}
.sb-new svg{width:16px;height:16px}
.sb-nav{flex:1;padding:0 10px;overflow-y:auto}
.sb-item{
  width:100%;display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:10px;
  font-size:14px;color:var(--sb-text);margin-bottom:3px;transition:all .2s;text-align:left;
}
.sb-item svg{width:18px;height:18px;flex-shrink:0}
.sb-item:hover{background:rgba(255,255,255,.06);color:#cbd5e1}
.sb-item.on{background:var(--brand-grad);color:#fff;box-shadow:0 6px 16px rgba(91,108,255,.35)}
.sb-foot{border-top:1px solid rgba(255,255,255,.08);padding:12px}
.sb-user{display:flex;align-items:center;gap:10px}
.sb-avatar{
  width:34px;height:34px;border-radius:10px;background:var(--brand-grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0;
}
.sb-user-t{flex:1;min-width:0}
.sb-user-t strong{display:block;color:#e6e9f2;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sb-user-t span{font-size:11px;color:var(--sb-text)}
.sb-logout{padding:6px;border-radius:8px;color:var(--sb-text);transition:all .2s}
.sb-logout:hover{background:rgba(239,68,68,.15);color:#f87171}
.sb-logout svg{width:17px;height:17px}

/* ============ 主区域 ============ */
.main{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg)}
.view{display:none;flex:1;flex-direction:column;min-height:0}
.view.on{display:flex}
.chat-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;background:var(--card);border-bottom:1px solid var(--border);
}
.chat-head-l{display:flex;align-items:center;gap:13px}
.ai-avatar{
  width:42px;height:42px;border-radius:13px;background:var(--brand-grad);color:#fff;
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(91,108,255,.3);
}
.ai-avatar svg{width:23px;height:23px}
.ai-avatar.task{background:linear-gradient(135deg,#0ea5e9,#6366f1)}
.ai-avatar.evo{background:linear-gradient(135deg,#f59e0b,#ef4444)}
.ai-avatar.set{background:linear-gradient(135deg,#10b981,#059669)}
.ai-avatar-img{
  width:46px;height:46px;border-radius:14px;object-fit:cover;flex-shrink:0;
  border:2px solid var(--card);box-shadow:0 6px 16px rgba(15,23,42,.25);
}
.chat-title{display:flex;align-items:center;gap:8px}
.chat-title strong{font-size:16px}
.online-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;display:inline-block;box-shadow:0 0 0 3px rgba(34,197,94,.2)}
.chat-sub{font-size:12px;color:var(--text2);margin-top:2px}
.chat-sub em{font-style:normal;color:var(--brand);font-weight:600}
.chat-head-r{display:flex;gap:8px}
.icon-btn{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:var(--text2);background:var(--bg);border:1px solid var(--border);transition:all .2s;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand)}
.icon-btn svg{width:17px;height:17px}

/* ============ 聊天 ============ */
.msgs{flex:1;overflow-y:auto;padding:24px 22px;scroll-behavior:smooth}
.msg{display:flex;gap:12px;margin-bottom:22px;animation:pop .25s ease}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.msg-ava{
  width:36px;height:36px;border-radius:11px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
}
.msg-ava.user{background:var(--brand-grad);color:#fff;font-weight:700;font-size:14px}
.msg-ava.ai{background:var(--card);border:1px solid var(--border);color:var(--brand)}
.msg-ava.ai svg{width:19px;height:19px}
.msg-ava-img{
  width:38px;height:38px;border-radius:12px;object-fit:cover;flex-shrink:0;
  border:2px solid var(--card);box-shadow:0 4px 12px rgba(15,23,42,.18);
}
.msg-body{max-width:78%;min-width:0}
.msg-bubble{
  padding:12px 16px;border-radius:16px;font-size:14.5px;line-height:1.75;word-break:break-word;white-space:pre-wrap;
}
.msg.user .msg-body{margin-left:auto}
.msg.user .msg-bubble{background:var(--brand-grad);color:#fff;border-bottom-right-radius:6px;box-shadow:0 6px 18px rgba(91,108,255,.25)}
.msg.ai .msg-bubble{background:var(--card);border:1px solid var(--border);border-bottom-left-radius:6px;box-shadow:var(--shadow)}
.msg-time{font-size:11px;color:var(--text2);margin-top:6px;padding:0 4px}
.msg.user .msg-time{text-align:right}
.msg-img{max-width:260px;border-radius:12px;margin-top:8px;display:block;box-shadow:var(--shadow)}
.msg-loading{display:flex;gap:5px;padding:6px 4px}
.msg-loading i{width:7px;height:7px;border-radius:50%;background:var(--brand);animation:bounce 1.2s infinite}
.msg-loading i:nth-child(2){animation-delay:.15s}
.msg-loading i:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,80%,100%{transform:scale(.6);opacity:.5}40%{transform:scale(1);opacity:1}}

/* ============ 输入区 ============ */
.composer{padding:12px 22px 14px;border-top:1px solid var(--border);background:var(--card)}
.composer-bar{
  display:flex;align-items:flex-end;gap:10px;padding:10px 12px;border-radius:16px;
  border:1px solid var(--border);background:var(--bg);transition:border-color .2s;
}
.composer-bar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,108,255,.12)}
.c-btn{
  width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  color:var(--text2);transition:all .2s;flex-shrink:0;
}
.c-btn:hover{color:var(--brand);background:rgba(91,108,255,.1)}
.c-btn svg{width:18px;height:18px}
.composer-bar textarea{
  flex:1;resize:none;max-height:120px;font-size:14.5px;line-height:1.6;padding:7px 2px;min-height:24px;
}
.send-btn{
  width:36px;height:36px;border-radius:10px;background:var(--brand-grad);color:#fff;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(91,108,255,.3);
  transition:transform .15s;
}
.send-btn:hover{transform:scale(1.05)}
.send-btn:disabled{opacity:.5;cursor:not-allowed}
.send-btn svg{width:16px;height:16px}
.composer-tips{display:flex;gap:16px;margin-top:9px;padding:0 4px}
.composer-tips span{font-size:11px;color:var(--text2);position:relative;padding-left:13px}
.composer-tips span::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}

/* ============ 任务视图 ============ */
.task-body{flex:1;overflow-y:auto;padding:22px;display:flex;justify-content:center}
.task-box{width:100%;max-width:760px}
.task-examples{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.t-ex-t{font-size:12px;color:var(--text2);margin-bottom:9px;font-weight:600}
.t-ex{
  padding:8px 14px;border-radius:10px;background:var(--card);border:1px solid var(--border);
  font-size:12.5px;color:var(--text);transition:all .2s;
}
.t-ex:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.task-input-row{display:flex;gap:10px;margin-bottom:14px}
.task-input-row input{
  flex:1;height:46px;padding:0 16px;border-radius:12px;border:1px solid var(--border);
  background:var(--card);font-size:14px;transition:border-color .2s;
}
.task-input-row input:focus{border-color:var(--brand)}
.task-output{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  min-height:220px;padding:16px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;line-height:1.7;white-space:pre-wrap;word-break:break-all;max-height:420px;overflow-y:auto;
}
.t-empty{color:var(--text2);text-align:center;padding:60px 0;font-family:inherit;font-size:13px}

/* ============ 进化视图 ============ */
.evo-body{flex:1;overflow-y:auto;padding:22px;max-width:860px;margin:0 auto;width:100%}
.evo-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.evo-stat{
  background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 10px;text-align:center;
}
.evo-stat strong{display:block;font-size:24px;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.evo-stat span{font-size:12px;color:var(--text2);margin-top:5px;display:block}
.evo-log,.evo-how{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;margin-bottom:16px}
.evo-log-item{
  display:flex;gap:12px;padding:9px 0;border-bottom:1px dashed var(--border);font-size:13px;
}
.evo-log-item:last-child{border-bottom:none}
.evo-log-item .t{color:var(--text2);flex-shrink:0;font-size:12px;padding-top:1px}
.evo-log-item .v{color:var(--brand);font-weight:700;flex-shrink:0}
.evo-log-item .d{color:var(--text)}
.evo-how p{font-size:13px;color:var(--text2);padding:5px 0;line-height:1.7}
.evo-how p::before{content:"◆ ";color:var(--brand);font-size:10px}

/* ============ 设置视图 ============ */
.set-body{flex:1;overflow-y:auto;padding:22px;max-width:760px;margin:0 auto;width:100%}
.set-group{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;margin-bottom:16px}
.set-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.set-row:last-child{margin-bottom:0}
.set-row label{width:104px;flex-shrink:0;font-size:13px;color:var(--text2)}
.set-row input,.set-row textarea{
  flex:1;height:40px;padding:0 12px;border-radius:10px;border:1px solid var(--border);background:var(--bg);font-size:13.5px;
  transition:border-color .2s;
}
.set-row textarea{height:auto;padding:10px 12px;resize:none}
.set-row input:focus,.set-row textarea:focus{border-color:var(--brand)}
.switch-row{display:flex;align-items:center;justify-content:space-between;width:100%;cursor:pointer;font-size:13.5px;color:var(--text)}
.switch{position:relative;width:44px;height:24px;flex-shrink:0}
.switch input{display:none}
.slider{position:absolute;inset:0;background:#cbd5e1;border-radius:999px;transition:.25s}
.slider::before{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;background:#fff;
  top:3px;left:3px;transition:.25s;box-shadow:0 1px 3px rgba(0,0,0,.2);
}
.switch input:checked + .slider{background:var(--brand-grad)}
.switch input:checked + .slider::before{transform:translateX(20px)}
.set-about{text-align:center;font-size:12px;color:var(--text2);padding:14px 0 4px}
#saveSettingsBtn{width:100%;margin-top:4px}

/* ============ Toast ============ */
.toast{
  position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(20px);
  background:#1a2035;color:#fff;padding:11px 22px;border-radius:12px;font-size:13.5px;
  opacity:0;pointer-events:none;transition:all .3s;z-index:999;box-shadow:0 10px 30px rgba(0,0,0,.25);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ============ 响应式 ============ */
@media (max-width:860px){
  .sidebar{width:74px}
  .sb-brand-t,.sb-user-t,.sb-new span,.sb-item span{display:none}
  .sb-item{justify-content:center;padding:12px}
  .sb-item svg{width:20px;height:20px}
  .sb-new{font-size:0;padding:0}
  .sb-new svg{width:18px;height:18px}
  .sb-brand{padding:16px 0;justify-content:center}
  .msg-body{max-width:85%}
  .evo-stats{grid-template-columns:repeat(2,1fr)}
}