/* 自考终极密押题库 —— 样式表 */
:root{
  --bg:#f5f7fb; --panel:#fff; --panel2:#fafbfe;
  --text:#16202f; --text2:#4a5768; --muted:#8794a8;
  --line:#e6eaf3; --line2:#eff2f8;
  --brand:#2563eb; --brand2:#1d4ed8; --brand-soft:#eaf1ff;
  --ok:#0f9d58; --ok-soft:#e8f7ef;
  --bad:#e0453a; --bad-soft:#fdecea;
  --warn:#d97706; --warn-soft:#fef4e6;
  --radius:14px; --radius-s:9px;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);
  --shadow-s:0 1px 2px rgba(16,24,40,.05),0 2px 8px rgba(16,24,40,.04);
}
html[data-theme="dark"]{
  --bg:#111621; --panel:#19202e; --panel2:#1d2534;
  --text:#e8edf6; --text2:#b3bED1; --muted:#7d8a9e;
  --line:#2a3345; --line2:#232b3a;
  --brand:#5b8cff; --brand2:#7aa2ff; --brand-soft:#1c2740;
  --ok:#3ddc97; --ok-soft:#12301f;
  --bad:#ff7a6e; --bad-soft:#34191a;
  --warn:#f0b25c; --warn-soft:#33260f;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35);
  --shadow-s:0 1px 2px rgba(0,0,0,.3);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:15px;line-height:1.72;-webkit-font-smoothing:antialiased;
  transition:background .25s,color .25s;
}
a{color:var(--brand);text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:var(--line);border-radius:9px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}
::-webkit-scrollbar-track{background:transparent}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:60;background:var(--panel);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:14px;padding:0 20px;height:60px;
  backdrop-filter:saturate(1.6) blur(8px);
}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:16px;letter-spacing:.2px;white-space:nowrap;cursor:pointer}
.logo .mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:#fff;font-size:15px;
  background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 4px 12px rgba(37,99,235,.28)
}
.logo small{font-weight:500;color:var(--muted);font-size:12px;letter-spacing:0}
.topbar .spacer{flex:1}
.cd-chip{
  display:flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:13px;white-space:nowrap;
}
.cd-chip b{font-size:17px;font-variant-numeric:tabular-nums}
.icon-btn{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:var(--panel);
  display:grid;place-items:center;cursor:pointer;font-size:15px;transition:.15s;
}
.icon-btn:hover{background:var(--panel2);border-color:var(--muted)}

/* ---------- 布局 ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:22px 20px 80px}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.g2,.g3,.g4{grid-template-columns:1fr}}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-s)}
.pad{padding:18px 20px}
.sec-title{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:800;margin:26px 0 13px}
.sec-title:first-child{margin-top:4px}
.sec-title .bar{width:4px;height:17px;border-radius:3px;background:var(--brand)}
.sec-title .sub{font-size:12.5px;font-weight:500;color:var(--muted)}

/* ---------- 首页 ---------- */
.hero{
  border-radius:18px;padding:26px 28px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(120deg,#1e3a8a 0%,#2563eb 45%,#0d9488 100%);
  box-shadow:0 12px 34px rgba(37,99,235,.24);
}
.hero::after{
  content:"";position:absolute;right:-70px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);
}
.hero h1{font-size:25px;letter-spacing:.4px;margin-bottom:8px;position:relative}
.hero p{font-size:13.5px;opacity:.92;max-width:640px;position:relative}
.hero .stat-row{display:flex;gap:26px;flex-wrap:wrap;margin-top:18px;position:relative}
.hero .stat b{display:block;font-size:23px;font-variant-numeric:tabular-nums;line-height:1.25}
.hero .stat span{font-size:12px;opacity:.85}

.subj-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  cursor:pointer;transition:.18s;position:relative;overflow:hidden;box-shadow:var(--shadow-s)
}
.subj-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:transparent}
.subj-card .accent{position:absolute;left:0;top:0;bottom:0;width:4px}
.subj-card .hd{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.subj-card .ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:22px;color:#fff;flex:none}
.subj-card h3{font-size:17px;font-weight:800;line-height:1.3}
.subj-card .code{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.4px}
.subj-card p{font-size:12.5px;color:var(--text2);line-height:1.65;margin-bottom:13px;min-height:56px}
.mini-bars{display:flex;gap:8px;flex-wrap:wrap}
.mini{font-size:11.5px;padding:3px 9px;border-radius:999px;background:var(--panel2);border:1px solid var(--line);color:var(--text2);font-weight:600}

/* ---------- Tab ---------- */
.tabs{display:flex;gap:4px;background:var(--panel);border:1px solid var(--line);padding:5px;border-radius:12px;overflow-x:auto;box-shadow:var(--shadow-s)}
.tab{
  padding:9px 16px;border-radius:9px;border:0;background:transparent;cursor:pointer;
  font-weight:700;font-size:13.5px;color:var(--text2);white-space:nowrap;transition:.15s
}
.tab:hover{background:var(--panel2)}
.tab.on{background:var(--brand);color:#fff;box-shadow:0 3px 10px rgba(37,99,235,.25)}

/* ---------- 标签 ---------- */
.tag{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px;letter-spacing:.2px;white-space:nowrap}
.tag.识记{background:#e8f1ff;color:#1d4ed8}
.tag.理解,.tag.领会{background:#e8f7ef;color:#0f7a45}
.tag.应用{background:#fdf0e3;color:#b45309}
.tag.拓展{background:#f1eaff;color:#6d28d9}
html[data-theme="dark"] .tag.识记{background:#182a4d;color:#8bb4ff}
html[data-theme="dark"] .tag.理解,html[data-theme="dark"] .tag.领会{background:#12301f;color:#6fe0a8}
html[data-theme="dark"] .tag.应用{background:#33260f;color:#f0b25c}
html[data-theme="dark"] .tag.拓展{background:#26194a;color:#b79bff}
.stars{color:#f0a020;font-size:11px;letter-spacing:1px;white-space:nowrap}
.qtype{font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px;background:var(--panel2);border:1px solid var(--line);color:var(--text2)}

/* ---------- 考点预测 ---------- */
.note-ch{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:11px;overflow:hidden;box-shadow:var(--shadow-s)}
.note-hd{display:flex;align-items:center;gap:11px;padding:14px 17px;cursor:pointer;user-select:none;transition:.15s}
.note-hd:hover{background:var(--panel2)}
.note-hd .nm{font-weight:800;font-size:14.5px;flex:1}
.note-hd .chev{color:var(--muted);font-size:12px;transition:transform .22s}
.note-ch.open .note-hd .chev{transform:rotate(90deg)}
.note-bd{display:none;padding:0 17px 8px;border-top:1px solid var(--line2)}
.note-ch.open .note-bd{display:block}
.pt{padding:11px 0;border-bottom:1px dashed var(--line2);display:flex;gap:11px;align-items:flex-start}
.pt:last-child{border-bottom:0}
.pt .body{flex:1;min-width:0}
.pt .k{font-weight:700;font-size:13.5px;margin-bottom:3px;display:flex;flex-wrap:wrap;gap:7px;align-items:center}
.pt .t{font-size:13.5px;color:var(--text2);line-height:1.78}
mark{background:linear-gradient(transparent 58%,#ffe9a8 58%);color:inherit;font-weight:700;padding:0 1px}
html[data-theme="dark"] mark{background:linear-gradient(transparent 58%,#4a3a10 58%)}

/* ---------- 通用控件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:10px 20px;border-radius:10px;border:1px solid var(--line);background:var(--panel);
  font-weight:700;font-size:13.5px;cursor:pointer;transition:.15s;white-space:nowrap
}
.btn:hover{background:var(--panel2);border-color:var(--muted)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(37,99,235,.24)}
.btn.primary:hover{background:var(--brand2);border-color:var(--brand2)}
.btn.ghost{background:transparent}
.btn.sm{padding:7px 14px;font-size:12.5px;border-radius:8px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.3px}
input[type=date],select,input[type=text]{
  padding:9px 12px;border-radius:9px;border:1px solid var(--line);background:var(--panel2);
  font-size:13.5px;outline:none;transition:.15s;min-width:0
}
input:focus,select:focus,textarea:focus{border-color:var(--brand);background:var(--panel)}
textarea{
  width:100%;min-height:130px;padding:13px 15px;border-radius:11px;border:1px solid var(--line);
  background:var(--panel2);font-size:14px;line-height:1.8;resize:vertical;outline:none;transition:.15s
}
.chips{display:flex;gap:7px;flex-wrap:wrap}
.chip{
  padding:6px 13px;border-radius:999px;border:1px solid var(--line);background:var(--panel);
  font-size:12.5px;font-weight:600;cursor:pointer;transition:.15s;color:var(--text2)
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 进度条 ---------- */
.pbar{height:7px;border-radius:99px;background:var(--line);overflow:hidden}
.pbar>i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:width .3s}

/* ---------- 题目卡 ---------- */
.qcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-s)}
.qmeta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:13px;font-size:12px;color:var(--muted)}
.qtext{font-size:15.5px;font-weight:600;line-height:1.85;white-space:pre-wrap;margin-bottom:16px}
.opts{display:flex;flex-direction:column;gap:9px}
.opt{
  display:flex;align-items:flex-start;gap:11px;padding:12px 15px;border-radius:11px;
  border:1.5px solid var(--line);background:var(--panel2);cursor:pointer;transition:.14s;font-size:14px;line-height:1.7
}
.opt:hover:not(.locked){border-color:var(--brand);background:var(--brand-soft)}
.opt .rd{
  width:19px;height:19px;border-radius:50%;border:1.5px solid var(--muted);flex:none;margin-top:5px;
  display:grid;place-items:center;font-size:11px;font-weight:800;color:transparent;transition:.14s;background:var(--panel)
}
.opt.on{border-color:var(--brand);background:var(--brand-soft)}
.opt.on .rd{border-color:var(--brand);background:var(--brand);color:#fff}
.opt.right{border-color:var(--ok);background:var(--ok-soft)}
.opt.right .rd{border-color:var(--ok);background:var(--ok);color:#fff}
.opt.wrong{border-color:var(--bad);background:var(--bad-soft)}
.opt.wrong .rd{border-color:var(--bad);background:var(--bad);color:#fff}
.opt.locked{cursor:default}
.opt .txt{flex:1}

.explain{margin-top:16px;border-radius:11px;padding:14px 16px;font-size:13.5px;line-height:1.85;white-space:pre-wrap}
.explain.right{background:var(--ok-soft);border-left:3px solid var(--ok)}
.explain.wrong{background:var(--bad-soft);border-left:3px solid var(--bad)}
.explain.info{background:var(--brand-soft);border-left:3px solid var(--brand)}
.explain h4{font-size:13px;font-weight:800;margin-bottom:6px;display:flex;align-items:center;gap:6px}
.ref-ans{background:var(--panel);border:1px dashed var(--line);border-radius:10px;padding:13px 15px;margin-top:11px;font-size:13.5px;line-height:1.85;white-space:pre-wrap;color:var(--text2)}
.kw-hit{display:inline-block;font-size:11.5px;padding:2px 8px;border-radius:6px;margin:3px 5px 0 0;font-weight:700}
.kw-hit.y{background:var(--ok-soft);color:var(--ok);border:1px solid var(--ok)}
.kw-hit.n{background:var(--panel2);color:var(--muted);border:1px dashed var(--line)}

/* ---------- 答题卡 ---------- */
.mock-layout{display:grid;grid-template-columns:1fr 250px;gap:16px;align-items:start}
@media(max-width:900px){.mock-layout{grid-template-columns:1fr}}
.sheet{position:sticky;top:78px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:15px;box-shadow:var(--shadow-s)}
.sheet h4{font-size:13px;font-weight:800;margin-bottom:11px;display:flex;justify-content:space-between;align-items:center}
.sheet .grp{font-size:11px;color:var(--muted);font-weight:700;margin:11px 0 7px;letter-spacing:.3px}
.sheet .dots{display:flex;flex-wrap:wrap;gap:6px}
.dot{
  width:29px;height:29px;border-radius:8px;border:1px solid var(--line);background:var(--panel2);
  display:grid;place-items:center;font-size:11.5px;font-weight:700;cursor:pointer;transition:.13s;color:var(--text2)
}
.dot:hover{border-color:var(--brand)}
.dot.done{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
.dot.cur{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 3px 9px rgba(37,99,235,.3)}
.timer{font-variant-numeric:tabular-nums;font-weight:800;font-size:17px;color:var(--brand)}
.timer.warn{color:var(--bad);animation:blink 1s infinite}
@keyframes blink{50%{opacity:.45}}

/* ---------- 成绩报告 ---------- */
.score-hero{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.ring{width:132px;height:132px;flex:none;position:relative}
.ring svg{transform:rotate(-90deg)}
.ring .val{position:absolute;inset:0;display:grid;place-content:center;text-align:center}
.ring .val b{font-size:32px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1}
.ring .val span{font-size:12px;color:var(--muted)}
.ring .val em{font-style:normal;font-size:13px;color:var(--muted)}
.stat-box{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:13px 16px;flex:1;min-width:130px}
.stat-box b{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.35}
.stat-box span{font-size:12px;color:var(--muted)}

/* ---------- 表格 ---------- */
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line2)}
th{font-size:12px;color:var(--muted);font-weight:700;background:var(--panel2)}
tr:last-child td{border-bottom:0}

/* ---------- 提示 ---------- */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,80px);opacity:0;pointer-events:none;
  background:#16202f;color:#fff;padding:11px 22px;border-radius:11px;font-size:13.5px;font-weight:600;
  box-shadow:0 10px 30px rgba(0,0,0,.28);transition:.25s;z-index:200;max-width:88vw;text-align:center
}
.toast.show{transform:translate(-50%,0);opacity:1}

.empty{text-align:center;padding:52px 20px;color:var(--muted);font-size:13.5px}
.empty .big{font-size:38px;margin-bottom:12px;opacity:.55}

/* ---------- 统计 ---------- */
.chstat{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line2)}
.chstat:last-child{border-bottom:0}
.chstat .nm{width:190px;font-size:13px;font-weight:600;flex:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chstat .pbar{flex:1}
.chstat .pc{width:78px;text-align:right;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;flex:none}
@media(max-width:600px){
  .topbar{padding:0 13px;gap:9px}
  .logo small{display:none}
  .wrap{padding:16px 13px 70px}
  .hero{padding:20px}
  .hero h1{font-size:20px}
  .chstat .nm{width:120px}
  .qcard{padding:17px}
}
.hide{display:none!important}
.flex{display:flex}
.between{justify-content:space-between}
.center{align-items:center}
.gap8{gap:8px}.gap12{gap:12px}.gap16{gap:16px}
.mt10{margin-top:10px}.mt16{margin-top:16px}.mt24{margin-top:24px}
.mb10{margin-bottom:10px}.mb16{margin-bottom:16px}
.small{font-size:12.5px;color:var(--muted)}
.wrap-text{white-space:pre-wrap}