/* ============================================================
   家庭统一平台 · 全局样式
   设计语言：清爽浅色 + 品牌青绿（#1A535C / #2E9D8B）
   响应式：PC 侧边栏三栏布局 / 手机底部 Tab
   ============================================================ */
:root{
  --deep:#1A535C;        /* 深青 */
  --brand:#2E9D8B;       /* 品牌青 */
  --light:#7BC8A9;       /* 浅青 */
  --mint:#E8F5F1;
  --warn:#E76F51;
  --gold:#F4A261;
  --ink:#20303A;
  --ink2:#5B6B76;
  --ink3:#93A2AC;
  --line:#E3EAEE;
  --bg:#F5F8F9;
  --card:#FFFFFF;
  --radius:14px;
  --shadow:0 1px 3px rgba(26,83,92,.06), 0 6px 20px rgba(26,83,92,.05);
  --shadow-lg:0 8px 40px rgba(26,83,92,.12);
  --safe-b: env(safe-area-inset-bottom, 0px);
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent}
html,body{margin:0; padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  background:var(--bg); color:var(--ink); font-size:15px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand); text-decoration:none}
button{font-family:inherit; cursor:pointer}
input,select,textarea{font-family:inherit; font-size:15px}

/* ---------- 布局 ---------- */
#app{min-height:100vh}
.layout{display:flex; min-height:100vh}

.sidebar{
  width:216px; flex:0 0 216px; background:var(--deep); color:#DCE9EC;
  padding:20px 0; position:fixed; top:0; bottom:0; left:0; overflow-y:auto;
  display:flex; flex-direction:column; z-index:50;
}
.sidebar .brand{padding:0 20px 16px; border-bottom:1px solid rgba(255,255,255,.1); margin-bottom:12px}
.sidebar .brand h1{font-size:17px; margin:0; color:#fff; letter-spacing:.5px}
.sidebar .brand p{margin:2px 0 0; font-size:11px; color:rgba(255,255,255,.5)}

.me-card{margin:0 12px 14px; padding:12px; background:rgba(255,255,255,.08); border-radius:12px;
         display:flex; align-items:center; gap:10px}
.me-card .av{font-size:26px}
.me-card .nm{font-size:14px; color:#fff; font-weight:600}
.me-card .rl{font-size:11px; color:rgba(255,255,255,.55)}

.nav a{
  display:flex; align-items:center; gap:10px; padding:10px 20px; color:#C4D6DA;
  font-size:14px; border-left:3px solid transparent; transition:.15s;
}
.nav a .ic{font-size:17px; width:22px; text-align:center}
.nav a:hover{background:rgba(255,255,255,.06); color:#fff}
.nav a.active{background:rgba(126,200,169,.16); color:#fff; border-left-color:var(--light); font-weight:600}
.nav .sec{padding:12px 20px 4px; font-size:11px; color:rgba(255,255,255,.35); letter-spacing:1px}

.main{flex:1; margin-left:216px; min-width:0; display:flex; flex-direction:column}
.topbar{
  height:58px; background:var(--card); border-bottom:1px solid var(--line);
  display:flex; align-items:center; justify-content:space-between; padding:0 22px;
  position:sticky; top:0; z-index:30;
}
.topbar h2{margin:0; font-size:17px; font-weight:600}
.topbar .right{display:flex; align-items:center; gap:12px}
.content{padding:20px 22px 40px; flex:1}

/* ---------- 组件 ---------- */
.card{background:var(--card); border-radius:var(--radius); box-shadow:var(--shadow); padding:18px; margin-bottom:16px}
.card.tight{padding:14px}
.card h3{margin:0 0 14px; font-size:15px; font-weight:600; display:flex; align-items:center; gap:8px}
.card h3 .more{margin-left:auto; font-size:12px; color:var(--brand); font-weight:400}

.grid{display:grid; gap:14px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.row{display:flex; gap:12px; align-items:center}
.row.wrap{flex-wrap:wrap}
.spread{justify-content:space-between}
.grow{flex:1}

.btn{
  border:1px solid var(--line); background:#fff; color:var(--ink); border-radius:9px;
  padding:8px 14px; font-size:13.5px; transition:.15s;
}
.btn:hover{border-color:var(--brand); color:var(--brand)}
.btn.primary{background:var(--brand); border-color:var(--brand); color:#fff}
.btn.primary:hover{background:#27907F; color:#fff}
.btn.deep{background:var(--deep); border-color:var(--deep); color:#fff}
.btn.danger{color:var(--warn); border-color:#F3C8BC}
.btn.sm{padding:5px 10px; font-size:12.5px}
.btn:disabled{opacity:.5; cursor:not-allowed}
.btn-row{display:flex; gap:8px; flex-wrap:wrap}

input[type=text],input[type=password],input[type=tel],input[type=number],input[type=date],
input[type=datetime-local],input[type=time],select,textarea{
  border:1px solid var(--line); border-radius:9px; padding:9px 12px; background:#fff;
  color:var(--ink); outline:none; width:100%; transition:.15s;
}
input:focus,select:focus,textarea:focus{border-color:var(--brand); box-shadow:0 0 0 3px rgba(46,157,139,.1)}
textarea{min-height:88px; resize:vertical; line-height:1.6}
label{font-size:12.5px; color:var(--ink2); display:block; margin-bottom:5px; font-weight:500}
.field{margin-bottom:13px}

.tag{display:inline-block; padding:2px 8px; border-radius:20px; font-size:11.5px; background:var(--mint); color:var(--brand)}
.tag.work{background:#E7F0F7; color:#3C6E8F}
.tag.study{background:#F3EDFB; color:#7B5EA7}
.tag.family{background:#FDF0E6; color:#B9722F}
.tag.health{background:#FCE9E6; color:#C1503A}
.tag.other{background:#EDF1F3; color:var(--ink2)}
.tag.warn{background:#FCE9E6; color:var(--warn)}

.badge{font-size:11px; padding:1px 7px; border-radius:20px; background:var(--line); color:var(--ink2)}
.badge.ok{background:#DCF0E9; color:#1F7A5C}
.badge.no{background:#FBE6DF; color:var(--warn)}

.stat{display:flex; flex-direction:column}
.stat .lb{font-size:12px; color:var(--ink3)}
.stat .vl{font-size:22px; font-weight:600; letter-spacing:-.5px; margin-top:2px}
.money{font-variant-numeric:tabular-nums; letter-spacing:-.3px}
.money.exp{color:var(--warn)}
.money.inc{color:#2E9D8B}
.money.big{font-size:26px; font-weight:700}

.list-item{
  display:flex; align-items:flex-start; gap:10px; padding:11px 0; border-bottom:1px solid var(--line);
}
.list-item:last-child{border-bottom:none}
.list-item .dot{width:8px; height:8px; border-radius:50%; background:var(--brand); margin-top:8px; flex:0 0 8px}
.list-item .body{flex:1; min-width:0}
.list-item .ttl{font-weight:500; word-break:break-word}
.list-item .sub{font-size:12.5px; color:var(--ink3); margin-top:2px}
.list-item .ops{display:flex; gap:6px; flex-shrink:0}

.empty{text-align:center; padding:34px 10px; color:var(--ink3); font-size:13.5px}
.empty .em{font-size:34px; display:block; margin-bottom:8px; opacity:.5}

.chk{display:flex; align-items:center; gap:8px; cursor:pointer}
.chk input{width:17px; height:17px; accent-color:var(--brand)}
.done .ttl{text-decoration:line-through; color:var(--ink3)}

.bar{height:7px; background:var(--line); border-radius:20px; overflow:hidden}
.bar > i{display:block; height:100%; background:linear-gradient(90deg,var(--brand),var(--light)); border-radius:20px; transition:.4s}

/* 课表 */
.tt-wrap{overflow-x:auto; -webkit-overflow-scrolling:touch}
table.tt{border-collapse:collapse; width:100%; min-width:640px; font-size:12.5px}
table.tt th,table.tt td{border:1px solid var(--line); padding:6px 4px; text-align:center; vertical-align:middle}
table.tt th{background:#F7FAFB; font-weight:600; color:var(--ink2); font-size:12px}
table.tt td.day{width:52px; background:#F7FAFB; font-weight:600; color:var(--ink2)}
.course{border-radius:7px; padding:5px 3px; color:#fff; font-size:11.5px; line-height:1.35}
.course .loc{opacity:.8; font-size:10px; display:block}
.course-cell.empty-cell{color:var(--ink3)}

/* AI 气泡 */
#ai-fab{
  position:fixed; right:22px; bottom:22px; width:54px; height:54px; border-radius:50%;
  background:linear-gradient(135deg,var(--deep),var(--brand)); color:#fff; font-size:23px;
  border:none; box-shadow:0 6px 24px rgba(26,83,92,.35); z-index:60; display:flex;
  align-items:center; justify-content:center;
}
.ai-panel{
  position:fixed; right:22px; bottom:86px; width:400px; max-width:calc(100vw - 32px);
  height:min(600px, calc(100vh - 120px)); background:#fff; border-radius:16px;
  box-shadow:var(--shadow-lg); z-index:61; display:flex; flex-direction:column; overflow:hidden;
}
.ai-panel .hd{padding:13px 16px; background:var(--deep); color:#fff; display:flex; align-items:center; gap:8px}
.ai-panel .hd b{font-size:14px}
.ai-panel .hd button{margin-left:auto; background:none; border:none; color:#fff; font-size:20px; opacity:.7}
.ai-body{flex:1; overflow-y:auto; padding:14px; background:#FBFCFD}
.bubble{margin-bottom:12px; display:flex}
.bubble.user{justify-content:flex-end}
.bubble .msg{
  max-width:82%; padding:9px 13px; border-radius:14px; font-size:13.8px; line-height:1.62;
  white-space:pre-wrap; word-break:break-word;
}
.bubble.user .msg{background:var(--brand); color:#fff; border-bottom-right-radius:4px}
.bubble.ai .msg{background:#fff; border:1px solid var(--line); border-bottom-left-radius:4px}
.bubble .msg .tool{display:block; margin-top:6px; font-size:11px; opacity:.6}
.ai-input{border-top:1px solid var(--line); padding:10px; display:flex; gap:8px; background:#fff}
.ai-input input{border:1px solid var(--line); border-radius:22px; padding:9px 14px; flex:1; font-size:14px}
.ai-input input:focus{outline:none; border-color:var(--brand)}
.ai-input button{border:none; background:var(--brand); color:#fff; border-radius:22px; padding:8px 16px; font-size:13.5px}
.chip{display:inline-block; padding:4px 10px; background:var(--mint); color:var(--brand);
      border-radius:16px; font-size:12px; margin:3px 4px 0 0; cursor:pointer; border:none}
.chip:hover{background:#D9EDE6}

/* Toast / Modal */
#toast-box{position:fixed; top:16px; left:50%; transform:translateX(-50%); z-index:200;
           display:flex; flex-direction:column; gap:8px; align-items:center; pointer-events:none}
.toast{background:rgba(32,48,58,.94); color:#fff; padding:9px 18px; border-radius:22px; font-size:13.5px;
       animation:drop .25s ease; max-width:80vw}
.toast.err{background:var(--warn)}
.toast.ok{background:var(--brand)}
@keyframes drop{from{opacity:0; transform:translateY(-10px)}to{opacity:1; transform:none}}

#modal-box:not(:empty){
  position:fixed; inset:0; background:rgba(20,35,42,.45); z-index:150;
  display:flex; align-items:center; justify-content:center; padding:16px;
}
.modal{background:#fff; border-radius:16px; width:min(560px,100%); max-height:88vh; overflow:auto;
       box-shadow:var(--shadow-lg); animation:pop .2s ease}
.modal .mh{padding:16px 20px; border-bottom:1px solid var(--line); font-weight:600; display:flex; align-items:center}
.modal .mh button{margin-left:auto; background:none; border:none; font-size:22px; color:var(--ink3)}
.modal .mb{padding:18px 20px}
.modal .mf{padding:12px 20px; border-top:1px solid var(--line); display:flex; gap:8px; justify-content:flex-end}
@keyframes pop{from{opacity:0; transform:scale(.96)}to{opacity:1; transform:none}}

/* 登录页 */
.login-wrap{min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px;
  background:linear-gradient(135deg,#1A535C 0%,#2E9D8B 55%,#7BC8A9 100%)}
.login-card{background:#fff; border-radius:20px; padding:32px 30px; width:min(400px,100%); box-shadow:var(--shadow-lg)}
.login-card .lg{text-align:center; margin-bottom:22px}
.login-card .lg .em{font-size:46px; line-height:1}
.login-card .lg h1{margin:8px 0 2px; font-size:21px; letter-spacing:1px}
.login-card .lg p{margin:0; font-size:12.5px; color:var(--ink3)}
.login-card .who{display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin:14px 0}
.login-card .who button{
  border:1px solid var(--line); background:#fff; border-radius:11px; padding:9px 4px; font-size:12px;
  display:flex; flex-direction:column; align-items:center; gap:2px; color:var(--ink2);
}
.login-card .who button.sel{border-color:var(--brand); background:var(--mint); color:var(--brand); font-weight:600}
.login-card .who button .e{font-size:22px}

/* ---------- 移动端 ---------- */
.tabbar{display:none}
@media (max-width:820px){
  .sidebar{display:none}
  .main{margin-left:0}
  .content{padding:14px 14px 84px}
  .topbar{padding:0 14px; height:52px}
  .topbar h2{font-size:16px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .g4.keep2,.g2.keep2{grid-template-columns:repeat(2,1fr)}
  .card{padding:15px; border-radius:12px}
  .tabbar{
    display:flex; position:fixed; bottom:0; left:0; right:0; background:#fff; z-index:70;
    border-top:1px solid var(--line); padding-bottom:var(--safe-b);
    box-shadow:0 -2px 14px rgba(26,83,92,.06);
  }
  .tabbar a{flex:1; text-align:center; padding:7px 2px 6px; color:var(--ink3); font-size:10.5px}
  .tabbar a .ic{display:block; font-size:20px; line-height:1.25}
  .tabbar a.active{color:var(--brand); font-weight:600}
  #ai-fab{right:14px; bottom:calc(66px + var(--safe-b)); width:50px; height:50px}
  .ai-panel{right:8px; left:8px; width:auto; bottom:calc(72px + var(--safe-b)); height:calc(100vh - 120px)}
  .stat .vl{font-size:19px}
}
::-webkit-scrollbar{width:8px; height:8px}
::-webkit-scrollbar-thumb{background:rgba(26,83,92,.16); border-radius:8px}
::-webkit-scrollbar-track{background:transparent}