*{margin:0;padding:0;box-sizing:border-box}
:root{
--bg:#f5f7fb;--card:#fff;--line:#e8ecf3;--text:#232a3b;--muted:#69718a;
--brand:#4f6bf0;--brand2:#6a85ff;--brand-soft:#eef1fe;
--green:#1fa971;--green-soft:#e6f6ef;
--amber:#e8930c;--amber-soft:#fdf3e3;
--red:#e5484d;--red-soft:#fdecec;
--purple:#8b5cf6;--purple-soft:#f3edfd;
}
html,body{height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}
button{font-family:inherit}

.layout{min-height:100vh}
.sidebar{width:216px;background:var(--card);border-right:1px solid var(--line);padding:22px 14px;display:flex;flex-direction:column;gap:18px;position:fixed;top:0;bottom:0;left:0;z-index:30}
.logo{font-size:21px;font-weight:800;padding:2px 10px;line-height:1.25}
.logo span{color:var(--brand)}
.logo small{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.5px}
#nav{display:flex;flex-direction:column;gap:4px}
#nav button{text-align:left;padding:11px 14px;border:none;background:transparent;border-radius:10px;color:var(--muted);font-size:14px;cursor:pointer;transition:.15s}
#nav button:hover{background:var(--bg);color:var(--text)}
#nav button.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.side-foot{margin-top:auto;display:flex;align-items:center;gap:8px;padding:0 10px;color:var(--muted);font-size:12px}
.dot{width:9px;height:9px;border-radius:50%;background:#c6ccd9;flex-shrink:0}
.dot.on{background:var(--green)}

main{margin-left:216px;padding:32px 38px;max-width:1060px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:20px}
h1{font-size:24px;line-height:1.3}
.sub{color:var(--muted);font-size:13px;margin-top:4px}
.muted{color:var(--muted)}
.sm{font-size:12px}
.grow{flex:1}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border-radius:10px;border:1px solid transparent;background:transparent;font-size:14px;cursor:pointer;transition:.15s;color:var(--text);white-space:nowrap}
.btn:hover{filter:brightness(.97)}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 4px 14px rgba(79,107,240,.28)}
.btn.ghost{border-color:var(--line);background:var(--card)}
.btn.ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn.danger{color:var(--red);border-color:#f5c9cb;background:var(--red-soft)}
.btn.sm{padding:6px 13px;font-size:13px;border-radius:8px}
button.mini,.btn.mini{padding:4px 10px;font-size:12px;border-radius:8px;border:none;background:transparent;color:var(--muted);cursor:pointer;transition:.15s}
button.mini:hover,.btn.mini:hover{background:var(--bg);color:var(--text)}

.txt-btn{border:none;background:transparent;color:var(--muted);font-size:12px;cursor:pointer;padding:5px 11px;border-radius:8px;transition:.15s}
.txt-btn:hover{background:var(--brand-soft);color:var(--brand)}

.icon-btn{width:30px;height:30px;border-radius:50%;border:none;background:transparent;color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:17px;line-height:1;padding:0;transition:.15s}
.icon-btn:hover{background:var(--bg);color:var(--text)}
.btn[disabled]{opacity:.55;pointer-events:none}

input,select,textarea{font-family:inherit;font-size:14px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--text);outline:none;width:100%}
select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2369718a' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");background-repeat:no-repeat;background-position:right 11px center;padding-right:32px;cursor:pointer}
select option{background:#fff;color:var(--text);padding:10px 14px;font-size:14px}
select option:checked{background:var(--brand-soft);color:var(--brand);font-weight:600}
input:focus,select:focus,textarea:focus{border-color:var(--brand)}
textarea{resize:vertical;min-height:70px}
label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.field{margin-bottom:14px}

.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:16px}
.card-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.card-head h3{font-size:15px}

.chips-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.chip{padding:5px 12px;border-radius:999px;font-size:12px;background:var(--card);border:1px solid var(--line);color:var(--muted)}
.chip.stat b{color:var(--text);margin-left:4px}
.chip.exam{background:var(--brand-soft);border-color:transparent;color:var(--brand);cursor:pointer}
.chip.exam.warn{background:var(--red-soft);color:var(--red)}

.tag{display:inline-flex;padding:2px 9px;border-radius:999px;font-size:11.5px;white-space:nowrap}
.tag.amber{background:var(--amber-soft);color:var(--amber)}
.tag.blue{background:var(--brand-soft);color:var(--brand)}
.tag.green{background:var(--green-soft);color:var(--green)}
.tag.purple{background:var(--purple-soft);color:var(--purple)}
.tag.gray{background:#eef0f5;color:var(--muted)}
.tag.red{background:var(--red-soft);color:var(--red)}

.plan-list{list-style:none}
.plan-item{display:flex;gap:12px;align-items:flex-start;padding:13px 4px;border-bottom:1px solid var(--line)}
.plan-item:last-child{border-bottom:none}
.pi-check{width:21px;height:21px;border-radius:50%;border:2px solid #cdd4e0;margin-top:2px;flex-shrink:0;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;transition:.15s;background:transparent}
.pi-check.on{background:var(--green);border-color:var(--green)}
.pi-body{flex:1;min-width:0}
.pi-title{font-weight:600}
.done .pi-title{text-decoration:line-through;color:var(--muted);font-weight:400}
.meta{display:flex;align-items:center;gap:8px;margin-top:4px;flex-wrap:wrap}
.reason{font-size:12px;color:var(--muted);margin-top:3px}
.note{background:var(--brand-soft);color:var(--brand);border-radius:10px;padding:10px 14px;font-size:13px;margin-top:12px}
.progress{height:7px;background:var(--bg);border-radius:99px;overflow:hidden;margin-top:14px}
.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2));border-radius:99px;transition:width .3s}

.grid4{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:16px}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.stat-card b{font-size:26px;display:block}
.stat-card span{color:var(--muted);font-size:12px}

.chart{display:flex;align-items:flex-end;gap:6px;height:130px;padding:6px 2px 0}
.chart .col{flex:1;display:flex;flex-direction:column;justify-content:flex-end;height:100%;align-items:center;gap:4px}
.chart i{width:100%;max-width:34px;background:linear-gradient(180deg,var(--brand),var(--brand2));border-radius:6px 6px 2px 2px;min-height:3px;opacity:.85;transition:.2s}
.chart .col:hover i{opacity:1}
.xlabels{display:flex;gap:6px;margin-top:6px}
.xlabels span{flex:1;text-align:center;font-size:10.5px;color:var(--muted)}

.bar-row{display:flex;align-items:center;gap:12px;margin-bottom:11px}
.bar-row .lbl{width:150px;flex-shrink:0;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar-row .bar{flex:1;height:9px;background:var(--bg);border-radius:99px;overflow:hidden}
.bar-row .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2));border-radius:99px;transition:width .3s}
.bar-row .val{width:44px;text-align:right;font-size:12.5px;color:var(--muted)}

details.report{border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:var(--card)}
details.report summary{padding:12px 16px;cursor:pointer;font-weight:600;font-size:13.5px;list-style:none;display:flex;align-items:center;gap:10px}
details.report summary::after{content:"+";margin-left:auto;color:var(--muted)}
details.report[open] summary::after{content:"–"}
.rep-body{padding:0 16px 14px;color:var(--text);font-size:13.5px;line-height:1.75}
.risk-card{border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px;background:var(--card)}
.risk-card h4{font-size:14px;display:flex;align-items:center;gap:8px;margin-bottom:8px}
.prob{height:9px;background:var(--bg);border-radius:99px;overflow:hidden;margin:6px 0 8px}
.prob i{display:block;height:100%;border-radius:99px}
.prob .lv-good{background:var(--green)}
.prob .lv-mid{background:var(--amber)}
.prob .lv-bad{background:var(--red)}

.mk-item{border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px;background:var(--card)}
.mk-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.mk-desc{color:var(--text);margin:6px 0}
.analysis{background:var(--bg);border-radius:10px;padding:12px 14px;margin-top:10px;font-size:13px;line-height:1.7}
.analysis p{margin-bottom:6px}
.analysis p:last-child{margin-bottom:0}
.mk-foot{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.empty{color:var(--muted);text-align:center;padding:36px 10px;font-size:13.5px}

.fab{position:fixed;right:26px;bottom:26px;z-index:60;padding:13px 22px;border:none;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-size:14.5px;font-weight:600;cursor:pointer;box-shadow:0 8px 24px rgba(79,107,240,.4);transition:.2s}
.fab:hover{transform:translateY(-2px)}

.drawer{position:fixed;top:0;right:0;bottom:0;width:420px;max-width:100vw;background:var(--card);border-left:1px solid var(--line);z-index:80;display:flex;flex-direction:column;transform:translateX(105%);transition:transform .28s ease;box-shadow:-12px 0 40px rgba(20,30,60,.08)}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line)}
.chat-msgs{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px;background:var(--bg)}
.msg{max-width:82%;padding:10px 14px;border-radius:14px;font-size:13.5px;line-height:1.65;white-space:pre-wrap;word-break:break-word}
.msg.user{align-self:flex-end;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;border-bottom-right-radius:4px}
.msg.bot{align-self:flex-start;background:var(--card);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.bot code{background:var(--bg);padding:1px 6px;border-radius:5px;font-size:12.5px}
.drawer .chips-row{padding:10px 14px 0;margin:0;border-top:1px solid var(--line)}
.drawer .chip{cursor:pointer}
.drawer .chip:hover{border-color:var(--brand);color:var(--brand)}
#chat-form{display:flex;gap:10px;padding:14px;border-top:1px solid var(--line);align-items:flex-end}
#chat-form textarea{flex:1;min-height:44px;max-height:120px}

.modal-backdrop{position:fixed;inset:0;background:rgba(18,24,44,.42);z-index:90;display:flex;align-items:flex-start;justify-content:center;padding:7vh 16px;overflow-y:auto}
.modal{background:var(--card);border-radius:16px;width:520px;max-width:100%;box-shadow:0 20px 60px rgba(10,20,50,.25)}
.modal-head{display:flex;align-items:center;padding:18px 22px 0;font-size:16.5px;font-weight:700}
.modal-body{padding:18px 22px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:0 22px 20px}
.seg{display:flex;gap:10px}
.seg button{flex:1;padding:12px;border:1.5px solid var(--line);border-radius:11px;background:var(--card);font-size:14px;cursor:pointer;transition:.15s;color:var(--muted)}
.seg button[data-r=good].on{border-color:var(--green);color:var(--green);background:var(--green-soft);font-weight:600}
.seg button[data-r=ok].on{border-color:var(--amber);color:var(--amber);background:var(--amber-soft);font-weight:600}
.seg button[data-r=bad].on{border-color:var(--red);color:var(--red);background:var(--red-soft);font-weight:600}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}

#toast-root{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:200;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{background:#232a3b;color:#fff;padding:11px 20px;border-radius:11px;font-size:13.5px;box-shadow:0 8px 24px rgba(10,20,50,.25);animation:tIn .25s ease;max-width:86vw}
.toast.success{background:var(--green)}
.toast.error{background:var(--red)}
@keyframes tIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

@media(max-width:900px){
.sidebar{width:100%;position:static;flex-direction:row;align-items:center;padding:12px;gap:10px;overflow-x:auto}
.logo{font-size:17px;white-space:nowrap}
.logo small{display:none}
#nav{flex-direction:row}
#nav button{white-space:nowrap;padding:8px 12px}
.side-foot{margin:0 0 0 auto}
main{margin-left:0;padding:18px 14px}
.drawer{width:100vw}
h1{font-size:20px}
}

.prof-strip{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.prof-status{display:flex;align-items:center;gap:10px;min-width:200px}
.prof-metrics{display:flex;align-items:center;gap:16px;flex:1;flex-wrap:wrap}
.pm{display:flex;align-items:center;gap:7px}
.pm-bar{width:74px;height:7px;background:var(--bg);border-radius:99px;overflow:hidden}
.pm-bar i{display:block;height:100%;border-radius:99px}

.badge{background:var(--red);color:#fff;font-size:10px;border-radius:999px;padding:1px 6px;margin-left:5px;font-weight:700}
.notif-item{border-bottom:1px solid var(--line);padding:12px 2px}
.notif-item:last-child{border-bottom:none}

.map-major{font-weight:700;font-size:14px;margin-bottom:8px;color:var(--brand)}
.map-dir{margin-bottom:12px}
.map-dir>b{display:block;margin-bottom:6px;font-size:13.5px}
.map-course{display:flex;gap:8px;align-items:flex-start;margin-bottom:6px;flex-wrap:wrap}
.map-course>span:first-child{min-width:150px;font-weight:600;font-size:13px}
.map-chapters{display:flex;flex-wrap:wrap;gap:6px}
.map-chapters i{font-style:normal;background:var(--bg);border-radius:6px;padding:2px 9px;font-size:12px;color:var(--muted)}

.timeline{position:relative;margin-top:6px}
.ms{position:relative;padding:0 0 20px 22px;border-left:2px solid var(--line)}
.ms:last-child{border-left-color:transparent;padding-bottom:4px}
.ms::before{content:"";position:absolute;left:-9px;top:2px;width:12px;height:12px;border-radius:50%;background:var(--brand);border:3px solid var(--brand-soft)}
.ms h4{font-size:14.5px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ms .target{margin:4px 0 10px;font-size:13px;color:var(--muted)}
.ab-row{display:flex;align-items:center;gap:10px;margin-bottom:7px;font-size:12.5px}
.ab-row .an{width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex-shrink:0}
.ab-bar{flex:1;height:9px;background:var(--bg);border-radius:99px;position:relative}
.ab-bar>i.cur{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--brand2))}
.ab-bar>i.req{position:absolute;top:-3px;bottom:-3px;width:2.5px;background:var(--text);border-radius:2px}
.ab-row .av{width:88px;text-align:right;flex-shrink:0;color:var(--muted)}
.ms-actions{margin-top:8px;font-size:13px;line-height:1.8;color:var(--text)}

.finding{background:var(--bg);border-radius:10px;padding:10px 14px;margin-top:8px;font-size:13px;line-height:1.7}

.tools-top{display:grid;grid-template-columns:1fr 330px;gap:16px;align-items:start}
@media(max-width:900px){.tools-top{grid-template-columns:1fr}}

.cd-row{display:flex;flex-wrap:wrap;gap:10px}
.cd-card{position:relative;border:1px solid var(--line);border-radius:12px;padding:12px 18px;min-width:128px;background:var(--bg)}
.cd-card .ct{font-size:13px;font-weight:600}
.cd-card b{font-size:26px;display:block;line-height:1.15;margin:2px 0}
.cd-card .cd-date{font-size:11px;color:var(--muted)}
.cd-card.soon b{color:var(--amber)}
.cd-card.warn b{color:var(--red)}
.cd-x{position:absolute;top:6px;right:9px;border:none;background:none;color:var(--muted);cursor:pointer;font-size:15px;padding:0;line-height:1}
.cd-x:hover{color:var(--red)}

.sched-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;overflow-x:auto}
.sched-col{background:var(--bg);border-radius:10px;padding:8px;min-height:150px}
.sched-col h5{font-size:12px;color:var(--muted);text-align:center;margin-bottom:6px}
.sched-col.today{outline:2px solid var(--brand-soft)}
.sched-col.today h5{color:var(--brand);font-weight:700}
.sched-item{position:relative;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:8px;padding:7px 20px 7px 9px;margin-bottom:6px;font-size:12px}
.si-time{color:var(--muted);font-size:11px}
.si-name{font-weight:600;font-size:12.5px;margin:2px 0}
.si-meta{color:var(--muted);font-size:11px}
.sched-empty{font-size:11px;color:#c3c9d6;text-align:center;padding:16px 0}

.pomo-card{text-align:center}
.pomo-ring{width:190px;height:190px;border-radius:50%;margin:12px auto 8px;display:flex;align-items:center;justify-content:center}
.pomo-inner{width:156px;height:156px;border-radius:50%;background:var(--card);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
.pomo-time{font-size:38px;font-weight:800;font-variant-numeric:tabular-nums}
.pomo-mode{font-size:12px;color:var(--muted)}
.pomo-controls{display:flex;gap:10px;justify-content:center;margin-top:8px}

.todo-form{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.todo-item{display:flex;align-items:center;gap:10px;padding:10px 4px;border-bottom:1px solid var(--line)}
.todo-item:last-child{border-bottom:none}
.todo-item.done .tt{text-decoration:line-through;color:var(--muted)}
.tt{font-weight:500;font-size:13.5px}

.about-lead{font-size:15px;line-height:1.95;margin-bottom:10px}
.feat-list{display:flex;flex-direction:column;gap:11px;margin-top:14px}
.feat-item{display:flex;gap:12px;align-items:flex-start}
.fi-icon{font-size:17px;line-height:1.5}

/* 练习室 */
.mission-row{display:flex;align-items:center;gap:12px;padding:11px 2px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.mission-row:last-child{border-bottom:none}
.m-score{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;flex-shrink:0}
.m-body{flex:1;min-width:200px}
.q-stem{font-size:15.5px;font-weight:600;line-height:1.7;margin-bottom:14px}
.opt-btn{display:block;width:100%;text-align:left;padding:11px 13px;border:1.5px solid var(--line);border-radius:11px;background:var(--card);margin-bottom:9px;font-size:13.5px;cursor:pointer;transition:.15s;line-height:1.55;color:var(--text)}
.opt-btn:hover{border-color:var(--brand)}
.opt-btn.right{border-color:var(--green);background:var(--green-soft)}
.opt-btn.wrong{border-color:var(--red);background:var(--red-soft)}
.opt-key{display:inline-flex;width:22px;height:22px;border-radius:6px;background:var(--bg);color:var(--muted);align-items:center;justify-content:center;font-size:12px;margin-right:9px;font-weight:700;flex-shrink:0}
.explain-box{background:var(--bg);border-radius:10px;padding:12px 14px;margin-top:8px;font-size:13px;line-height:1.75}
.qz-prog{height:6px;background:var(--bg);border-radius:99px;overflow:hidden;margin-bottom:16px}
.qz-prog i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:width .3s}
.insight-row{display:flex;gap:11px;align-items:flex-start;padding:10px 2px;border-bottom:1px solid var(--line)}
.insight-row:last-child{border-bottom:none}
.insight-row .ii{font-size:17px;line-height:1.5}
.insight-row .it{font-size:13.5px;line-height:1.7}
button.mini.star-on,.mini.star-on{color:var(--amber)}

/* Agent 操作确认 */
.agent-acts{align-self:flex-start;display:flex;flex-direction:column;gap:6px;max-width:88%}
.agent-act{display:flex;align-items:center;gap:9px;background:var(--card);border:1px dashed var(--line);border-radius:11px;padding:8px 12px}
.agent-act .grow{min-width:0;overflow:hidden;text-overflow:ellipsis}
.agent-act.ok{border-style:solid;border-color:var(--green);background:var(--green-soft)}
.agent-act.skip{opacity:.6}

/* 分析页图表 */
.lchart{width:100%;height:auto;display:block}
.lc-y{font-size:10px;fill:var(--muted)}
.lc-x{font-size:10px;fill:var(--muted)}
.donut-wrap{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.donut{width:150px;height:150px;flex-shrink:0}
.dn-num{font-size:20px;font-weight:800;fill:var(--text)}
.dn-lbl{font-size:9.5px;fill:var(--muted)}
.legend{display:flex;flex-direction:column;gap:7px;min-width:130px}
.lg-item{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text)}
.lg-item i{width:10px;height:10px;border-radius:3px;flex-shrink:0}
.lg-item b{margin-left:auto;color:var(--muted);font-weight:600}

/* 知识树课程聚合行 */
.course-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);background:var(--bg);border-radius:10px;padding:8px 13px;margin:-2px 0 12px}
.course-meta b{color:var(--text);font-weight:700}
.course-meta .cm-warn b{color:var(--red)}
.course-meta .cm-warn{color:var(--red)}
.course-meta .cm-weak{color:var(--amber)}
.grid2>.card{margin-bottom:0}
.grid2{align-items:start}