:root{--pri:#4f46e5;--pri2:#6366f1;--acc:#0ea5e9;--bg:#f5f6fb;--card:#fff;
--tx:#1f2430;--sub:#8b90a0;--line:#eceef5;--ok:#16a34a;--warn:#f59e0b;--soft:#eef0fb;}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--tx);}
.app{max-width:430px;margin:0 auto;background:var(--bg);min-height:100vh;position:relative;padding-bottom:64px;}
.top{position:sticky;top:0;z-index:20;height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;color:#fff;background:linear-gradient(120deg,var(--pri),var(--pri2));}
.top-l{font-size:13px;opacity:.9;} .top-r{font-size:16px;font-weight:700;}
.main{padding:12px;}
.card{background:var(--card);border-radius:14px;padding:14px;margin-bottom:12px;box-shadow:0 2px 10px rgba(79,70,229,.05);border:1px solid var(--line);}
.row{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.sec-title{font-size:14px;font-weight:700;margin:6px 2px 10px;display:flex;align-items:center;gap:6px;}
.muted{color:var(--sub);font-size:12px;}
.tag{display:inline-block;font-size:11px;padding:2px 9px;border-radius:20px;background:var(--soft);color:var(--pri);font-weight:600;}
.badge{display:inline-block;font-size:11px;padding:3px 9px;border-radius:20px;font-weight:600;}
.b-ok{background:#e8f6ee;color:var(--ok);} .b-warn{background:#fef3e0;color:var(--warn);}
.b-pri{background:var(--soft);color:var(--pri);} .b-acc{background:#e3f4fb;color:var(--acc);}
.b-gray{background:#eef0f4;color:var(--sub);}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.kpi{background:linear-gradient(135deg,#fff,#eef0fb);border-radius:14px;padding:14px;box-shadow:0 2px 10px rgba(79,70,229,.06);border:1px solid var(--line);}
.kpi .n{font-size:22px;font-weight:800;color:var(--pri);} .kpi .l{font-size:12px;color:var(--sub);margin-top:4px;}
.thumb{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--pri2),var(--pri));display:flex;align-items:center;justify-content:center;font-size:22px;flex:0 0 auto;color:#fff;}
.guide{display:flex;gap:10px;padding:11px 0;border-bottom:1px solid var(--line);}
.guide:last-child{border-bottom:none;}
.guide .info{flex:1;min-width:0;}
.guide .nm{font-size:14px;font-weight:600;}
.guide .sub{font-size:11px;color:var(--sub);margin-top:2px;}
.guide .meta{font-size:11px;color:var(--pri);margin-top:3px;}
.btn{border:none;border-radius:11px;padding:11px 16px;font-size:14px;font-weight:700;background:linear-gradient(120deg,var(--pri),var(--pri2));color:#fff;}
.btn.line{background:#fff;border:1px solid var(--pri);color:var(--pri);}
.btn.full{width:100%;} .btn.sm{padding:6px 12px;font-size:12px;border-radius:9px;}
.btn.ghost{background:#f1f2f8;color:var(--tx);} .btn[disabled]{opacity:.45;}
.seg{display:flex;background:var(--soft);border-radius:11px;padding:4px;gap:4px;}
.sg{flex:1;} .sg button{width:100%;border:none;background:transparent;padding:8px;border-radius:8px;font-size:13px;font-weight:600;color:var(--sub);}
.sg.on button{background:#fff;color:var(--pri);box-shadow:0 1px 4px rgba(79,70,229,.12);}
.search{display:flex;align-items:center;gap:8px;background:#fff;border-radius:11px;padding:11px 12px;margin-bottom:10px;color:var(--sub);font-size:13px;border:1px solid var(--line);}
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;margin-bottom:10px;}
.chip{flex:0 0 auto;font-size:12px;padding:6px 13px;border-radius:20px;background:#fff;color:var(--sub);border:1px solid var(--line);}
.chip.on{background:linear-gradient(120deg,var(--pri),var(--pri2));color:#fff;border-color:transparent;}
.banner{border-radius:16px;padding:18px 16px;color:#fff;background:linear-gradient(135deg,#4f46e5,#6366f1);margin-bottom:12px;display:flex;align-items:center;justify-content:space-between;}
.banner .b1{font-size:18px;font-weight:800;} .banner .b2{font-size:12px;opacity:.92;margin-top:4px;}
.bar{height:8px;border-radius:6px;background:var(--soft);overflow:hidden;}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--pri2),var(--pri));}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--pri2),var(--pri));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto;}
.sgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center;}
.sgrid .it{background:var(--soft);border-radius:12px;padding:10px 4px;font-size:11px;color:var(--sub);}
.sgrid .it .e{font-size:20px;display:block;margin-bottom:4px;}
.nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:430px;height:58px;background:#fff;border-top:1px solid var(--line);display:flex;z-index:30;}
.nav a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;text-decoration:none;color:var(--sub);font-size:11px;}
.nav a .ic{font-size:19px;} .nav a.on{color:var(--pri);} .nav a.on .ic{transform:scale(1.12);}
.switch{width:38px;height:22px;border-radius:20px;background:#d8dbe6;position:relative;flex:0 0 auto;transition:.2s;cursor:pointer;}
.switch::after{content:"";position:absolute;width:18px;height:18px;border-radius:50%;background:#fff;top:2px;left:2px;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2);}
.switch.on{background:var(--pri);} .switch.on::after{left:18px;}
/* 题目编辑项 */
.qitem{display:flex;align-items:flex-start;gap:10px;background:var(--soft);border-radius:11px;padding:11px;margin-bottom:8px;}
.qitem .drag{color:var(--sub);font-size:18px;cursor:grab;line-height:1.3;}
.qitem .qmain{flex:1;}
.qitem .qnm{font-size:13px;font-weight:600;}
.qitem .qmeta{font-size:11px;color:var(--sub);margin-top:2px;}
.qadd{display:flex;gap:8px;margin:6px 0 4px;}
.qadd .btn{flex:1;}
.ipt{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px;font-size:13px;color:var(--tx);background:#fff;}
textarea.ipt{min-height:84px;resize:none;}
/* 答题端 */
.opt{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:12px;margin-bottom:9px;font-size:13px;}
.opt .dot{width:18px;height:18px;border-radius:50%;border:2px solid var(--line);flex:0 0 auto;}
.opt.sel{border-color:var(--pri);background:var(--soft);} .opt.sel .dot{border-color:var(--pri);background:var(--pri);}
.opt.box .dot{border-radius:5px;}
/* CSS 条形图 */
.bars{display:flex;align-items:flex-end;gap:9px;height:150px;padding:10px 4px 0;}
.bars .col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:6px;height:100%;}
.bars .col .v{font-size:11px;color:var(--pri);font-weight:700;}
.bars .col .bk{width:64%;border-radius:6px 6px 0 0;background:linear-gradient(180deg,var(--pri2),var(--pri));}
.bars .col .lab{font-size:11px;color:var(--sub);}
/* CSS 饼图 */
.pie{width:118px;height:118px;border-radius:50%;flex:0 0 auto;position:relative;}
.piebox{display:flex;align-items:center;gap:16px;}
.legend{flex:1;font-size:12px;}
.legend .li{display:flex;align-items:center;gap:7px;margin-bottom:7px;color:var(--tx);}
.legend .dotc{width:11px;height:11px;border-radius:3px;flex:0 0 auto;}
/* 二维码占位 */
.qr{display:grid;gap:2px;width:148px;height:148px;padding:8px;background:#fff;border:1px solid var(--line);border-radius:12px;margin:0 auto;}
.qr i{background:#fff;border-radius:1px;}
.qr i.on{background:#1f2430;}
.thanks{text-align:center;padding:34px 12px;}
.thanks .tick{width:74px;height:74px;border-radius:50%;background:linear-gradient(135deg,#4f46e5,#6366f1);color:#fff;font-size:38px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;box-shadow:0 6px 18px rgba(79,70,229,.3);}
.thanks .t1{font-size:20px;font-weight:800;} .thanks .t2{font-size:13px;color:var(--sub);margin-top:8px;line-height:1.7;}
.list-in{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px solid var(--line);}
.list-in:last-child{border-bottom:none;}
.list-in .it{flex:1;} .list-in .nm{font-size:13px;font-weight:600;} .list-in .sb{font-size:11px;color:var(--sub);margin-top:2px;}