@charset "UTF-8";
/* 蜜爪侠学习监督系统 - 通用样式（蜜爪橙红暖色调 · 小熊猫元素） */
:root{
    --brand:#ff6a3d;
    --brand-dark:#e8541f;
    --brand2:#ffb43d;
    --navy:#2a4068;
    --green:#2fa96b;
    --red:#e04b4b;
    --blue:#2f7ff0;
    --bg:#fdf5ee;
    --card:#fffdfb;
    --line:#f3ddca;
    --text:#3a2c14;
    --muted:#9c7c5e;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
    font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
    background:radial-gradient(1200px 420px at 50% -140px,#ffe7cf,transparent),var(--bg);
    color:var(--text);
    font-size:17px;
    line-height:1.7;
    -webkit-text-size-adjust:100%;
}
a{color:var(--navy);text-decoration:none;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px;}
.narrow{max-width:820px;}

/* 小熊猫装饰元素 */
.panda{display:inline-block;filter:drop-shadow(0 2px 3px rgba(255,106,61,.35));}
.foot-panda{font-size:30px;margin-bottom:6px;}

/* ===== 顶部导航 ===== */
.topbar{
    background:linear-gradient(135deg,#ff8f4d 0%,#ff5e3d 100%);
    color:#fff;
    box-shadow:0 4px 18px rgba(255,94,61,.35);
    position:sticky;top:0;z-index:50;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:12px;}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:#fff;letter-spacing:1px;}

.logo .badge{
    background:var(--brand);color:#fff;border-radius:10px;padding:2px 10px;font-size:18px;
    box-shadow:0 3px 8px rgba(255,122,61,.45);
}
.logo small{display:block;font-size:12px;font-weight:400;opacity:.85;letter-spacing:0;}
.nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nav a{
    color:#fff3ea;padding:8px 14px;border-radius:8px;font-size:16px;transition:.15s;white-space:nowrap;
}
.nav a:hover{background:rgba(255,255,255,.2);color:#fff;}
.nav a.active{background:#fff;color:var(--brand-dark);font-weight:700;box-shadow:0 3px 10px rgba(0,0,0,.12);}
.nav .user{color:#fff0e4;font-size:15px;margin-left:6px;}

/* 抽屉打开时提升顶栏层级，避免被遮罩盖住（遮罩 z-index:150） */
.topbar.nav-open{z-index:200;}
/* ===== 移动端菜单按钮 / 遮罩 ===== */
.nav-toggle{
    display:none;width:42px;height:38px;border-radius:10px;cursor:pointer;
    background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.45);
    color:#fff;font-size:20px;line-height:1;
    align-items:center;justify-content:center;position:relative;z-index:210;
}
.nav-toggle:hover{background:rgba(255,255,255,.32);}
.nav-mask{position:fixed;left:0;top:0;right:0;bottom:0;background:rgba(0,0,0,.45);z-index:150;display:none;}
.nav-mask.show{display:block;}

/* ===== 首页 hero ===== */
.hero{text-align:center;padding:26px 10px 4px;}
.hero-logo{width:100%;max-width:100%;height:auto;display:block;margin:0 auto 10px;border-radius:16px;box-shadow:0 14px 36px rgba(255,106,61,.28);background:#fff;padding:6px;box-sizing:border-box;}
h1.page-title{font-size:27px;margin:14px 0 6px;}

/* ===== 通用组件 ===== */
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 6px 20px rgba(255,106,61,.06);transition:.18s;}
.card:hover{box-shadow:0 10px 28px rgba(255,106,61,.1);}
.card + .card{margin-top:18px;}
h2.sec-title{font-size:20px;margin:0 0 14px;padding-left:12px;border-left:4px solid var(--brand);}
p.lead{color:var(--muted);margin:0 0 18px;font-size:16px;}
.muted{color:var(--muted);font-size:15px;}
.center{text-align:center;}

.btn{
    display:inline-block;border:none;cursor:pointer;font-family:inherit;
    background:linear-gradient(135deg,var(--brand2),var(--brand));color:#fff;padding:12px 26px;border-radius:10px;font-size:17px;font-weight:600;
    transition:.15s;box-shadow:0 4px 12px rgba(255,106,61,.32);
}
.btn:hover{background:linear-gradient(135deg,#ffa52e,var(--brand-dark));color:#fff;transform:translateY(-1px);}
.btn.blue{background:var(--blue);box-shadow:0 3px 10px rgba(47,127,240,.28);}
.btn.blue:hover{background:#1c68d6;}
.btn.green{background:var(--green);box-shadow:0 3px 10px rgba(47,169,107,.28);}
.btn.green:hover{background:#27935b;}
.btn.gray{background:#8b98ad;box-shadow:none;}
.btn.gray:hover{background:#71809a;}
.btn.line{background:#fff;color:var(--navy);border:1px solid var(--line);box-shadow:none;}
.btn.line:hover{border-color:var(--brand);color:var(--brand-dark);}
.btn.sm{padding:6px 14px;font-size:15px;border-radius:8px;}
.btn.big{padding:16px 44px;font-size:20px;border-radius:12px;}
.btn[disabled]{opacity:.55;cursor:not-allowed;}

.grid{display:grid;gap:16px;}
.grid3{grid-template-columns:repeat(3,1fr);}
.grid2{grid-template-columns:repeat(2,1fr);}
.grid4{grid-template-columns:repeat(4,1fr);}

/* ===== 首页科目卡 ===== */
.subj{
    background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 20px;text-align:center;
    cursor:pointer;transition:.18s;position:relative;overflow:hidden;
}
.subj:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(255,106,61,.18);border-color:var(--brand);}
.subj.on{
    border-color:var(--brand);
    background:linear-gradient(135deg,#fff8f3 0%,#ffe7d7 100%);
    box-shadow:0 10px 24px rgba(255,106,61,.24);
    transform:translateY(-2px);
}
.subj.on .nm{color:var(--brand-dark);}
.subj.on:before{
    content:"✓ 已选";position:absolute;right:0;top:0;
    background:var(--brand);color:#fff;font-size:12px;font-weight:600;
    padding:4px 12px;border-bottom-left-radius:12px;
}
.subj .ic{font-size:44px;line-height:1;filter:drop-shadow(0 2px 3px rgba(255,106,61,.3));}
.subj .nm{font-size:24px;font-weight:700;margin-top:8px;}
.subj .ds{color:var(--muted);font-size:15px;margin-top:4px;}
.subj .ct{color:var(--brand-dark);font-size:15px;margin-top:10px;font-weight:600;}

/* ===== 表单 ===== */
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:16px;margin-bottom:6px;color:#5a4326;font-weight:600;}
input[type=text],input[type=password],input[type=number],select,textarea{
    width:100%;padding:12px 14px;font-size:17px;font-family:inherit;
    border:1px solid #ecd3bf;border-radius:10px;background:#fffdfb;color:var(--text);outline:none;transition:.15s;
}
input:focus,select:focus,textarea:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(255,106,61,.15);}
textarea{min-height:180px;line-height:1.8;font-size:15px;}
.inline{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.inline input,.inline select{width:auto;flex:1;min-width:140px;}

/* ===== 表格 ===== */
table.tbl{width:100%;border-collapse:collapse;font-size:15px;background:#fff;}
table.tbl th,table.tbl td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
table.tbl th{background:#fff4ea;color:#7a5230;font-weight:700;white-space:nowrap;}
table.tbl tr:hover td{background:#fff8f2;}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;}

/* ===== 标签 ===== */
.tag{display:inline-block;padding:2px 10px;border-radius:20px;font-size:13px;background:#fbeede;color:#8a5a2c;}
.tag.g{background:#e6f6ed;color:#1e7d4e;}
.tag.o{background:#ffe9d8;color:#c9500f;}
.tag.b{background:#e8f1fe;color:#1a5fb4;}
.tag.r{background:#fdeaea;color:#b53232;}

/* ===== 答题区 ===== */
.quiz-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:14px;}
.quiz-meta{font-size:16px;color:var(--muted);}
.quiz-meta b{color:var(--brand-dark);font-size:18px;}
.progress{height:12px;background:#f1e2d6;border-radius:10px;overflow:hidden;margin-bottom:18px;}
.progress i{display:block;height:100%;background:linear-gradient(90deg,#ffb43d,#ff6a3d);width:0;transition:width .3s;}
.q-title{font-size:26px;line-height:1.6;margin:6px 0 20px;font-weight:700;}
.q-type{font-size:14px;color:var(--muted);margin-bottom:6px;}
.opt{
    display:block;width:100%;text-align:left;margin-bottom:12px;padding:16px 18px;font-size:20px;
    border:2px solid #f0d8c6;border-radius:12px;background:#fff;cursor:pointer;transition:.15s;font-family:inherit;color:var(--text);
}
.opt:hover{border-color:var(--brand);background:#fff6ef;}
.opt .k{display:inline-block;width:34px;height:34px;line-height:32px;text-align:center;border-radius:50%;
    background:#fbeede;color:#8a5a2c;font-weight:700;margin-right:12px;font-size:18px;}
.opt.right{border-color:var(--green);background:#eafaf1;}
.opt.right .k{background:var(--green);color:#fff;}
.opt.wrong{border-color:var(--red);background:#fdeeee;}
.opt.wrong .k{background:var(--red);color:#fff;}
.opt[disabled]{cursor:default;}
.feedback{margin-top:6px;padding:16px 18px;border-radius:12px;font-size:18px;display:none;}
.feedback.ok{display:block;background:#eafaf1;color:#1e7d4e;border:1px solid #b9e6cd;}
.feedback.no{display:block;background:#fdeeee;color:#b53232;border:1px solid #f3c3c3;}
.feedback .exp{font-size:16px;color:#5b6b83;margin-top:8px;}
.sound-tip{font-size:14px;color:var(--muted);margin-top:14px;}

/* ===== 统计小卡 ===== */
.stat{background:linear-gradient(160deg,#fff,#fff5ec);border:1px solid var(--line);border-radius:16px;padding:20px;text-align:center;box-shadow:0 4px 16px rgba(255,106,61,.06);}
.stat .n{font-size:32px;font-weight:800;color:var(--brand-dark);line-height:1.2;}
.stat .t{font-size:15px;color:var(--muted);margin-top:4px;}

/* ===== 分页 ===== */
.pager{margin-top:16px;display:flex;gap:8px;align-items:center;justify-content:center;flex-wrap:wrap;}
.pager a{padding:6px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:15px;}
.pager a:hover{border-color:var(--brand);color:var(--brand-dark);}
.pager .cur{font-size:15px;color:var(--muted);}

/* ===== 提示条 ===== */
.alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:16px;}
.alert.ok{background:#eafaf1;color:#1e7d4e;border:1px solid #b9e6cd;}
.alert.err{background:#fdeeee;color:#b53232;border:1px solid #f3c3c3;}
.alert.info{background:#eef4fe;color:#1a5fb4;border:1px solid #c9ddfa;}

/* ===== 页脚 ===== */
.footer{margin-top:40px;padding:26px 0;color:var(--muted);font-size:14px;text-align:center;border-top:1px solid var(--line);line-height:1.9;}
.footer .ip{display:inline-block;margin-top:6px;font-size:13px;color:var(--brand-dark);background:#fff2e6;padding:3px 12px;border-radius:20px;}

/* ===== 管理端布局 ===== */
.admin-body{display:flex;min-height:100vh;}
.side{
    width:220px;background:linear-gradient(180deg,#2a4068,#22365a);color:#cfe0f5;flex-shrink:0;padding:18px 0;
}
.side .s-logo{font-size:19px;font-weight:700;color:#fff;padding:0 18px 16px;border-bottom:1px solid rgba(255,255,255,.12);}
.side a{display:block;padding:12px 22px;color:#cfe0f5;font-size:16px;border-left:3px solid transparent;}
.side a:hover{background:rgba(255,255,255,.08);color:#fff;}
.side a.on{background:rgba(255,255,255,.12);color:#fff;border-left-color:var(--brand);}
.side .grp{font-size:13px;color:#7fa0cc;padding:14px 22px 4px;letter-spacing:1px;}
.main{flex:1;min-width:0;background:var(--bg);}
.main .inner{padding:22px;}
.admin-top{background:#fff;border-bottom:1px solid var(--line);padding:14px 22px;display:flex;justify-content:space-between;align-items:center;}
.admin-top .who{font-size:15px;color:var(--muted);}

/* ===== 响应式 ===== */
@media (max-width:900px){
    .grid3,.grid4{grid-template-columns:repeat(2,1fr);}
    .side{width:64px;}
    .side a{font-size:0;padding:14px 0;text-align:center;}
    .side a:before{font-size:18px;}
    .side .grp{display:none;}
    .side .s-logo{font-size:0;padding:12px 0;text-align:center;}
    .side .s-logo:after{content:"蜜";font-size:20px;color:#fff;}
}
/* 手机 / 窄屏：顶部导航改为右侧抽屉 */
@media (max-width:768px){
    .nav-toggle{display:inline-flex;}
    .topbar .wrap{height:56px;}
    .nav{
        position:fixed;top:0;right:0;bottom:0;width:78%;max-width:290px;
        background:#fff;flex-direction:column;align-items:stretch;gap:2px;
        padding:68px 12px 20px;z-index:200;overflow-y:auto;
        transform:translateX(105%);transition:transform .25s ease;
        box-shadow:-8px 0 26px rgba(0,0,0,.2);
    }
    .nav.open{transform:translateX(0);}
    .nav a{display:block;color:#444;font-size:16px;padding:13px 14px;border-radius:10px;border-bottom:1px solid #f2f2f2;}
    .nav a:hover{background:#fff3ec;color:var(--brand-dark);}
    .nav a.active{background:var(--brand);color:#fff;font-weight:700;box-shadow:none;}
    .nav .user{color:var(--muted);font-size:14px;margin:6px 0 0;padding:10px 14px;border-bottom:1px solid #f2f2f2;}
}
@media (max-width:640px){
    body{font-size:16px;}
    .wrap{padding:0 12px;}
    .grid2,.grid3,.grid4{grid-template-columns:1fr;}
    .topbar .wrap{height:54px;padding:0 14px;flex-direction:row;align-items:center;justify-content:space-between;gap:10px;}
    .logo{font-size:19px;letter-spacing:0;}
    .q-title{font-size:21px;}
    .opt{font-size:18px;padding:14px;}
    .btn{padding:12px 20px;font-size:16px;}
    h1.page-title{font-size:22px;}
    .card{padding:16px;}
    .admin-top{padding:12px 14px;}
    .main .inner{padding:14px;}
    table.tbl{font-size:14px;}
    table.tbl th,table.tbl td{padding:9px 8px;white-space:nowrap;}
}