/* ==========================================================================
   考公刷题平台 —— 作用域样式表
   作用域：.ls-kg-（全局入队，靠前缀隔离，不影响其它页面）
   设计基调：藏青主色 / 纸面白底 / 克制的分隔线 / 不用渐变与玻璃拟态
   ========================================================================== */

.ls-kg-root {
    --kg-primary: #1f3a5f;
    --kg-primary-h: #16293f;
    --kg-primary-l: #2f5486;
    --kg-accent: #c0392b;
    --kg-ok: #1e8e4e;
    --kg-warn: #b8860b;
    --kg-err: #c0392b;

    --kg-text: #1c2530;
    --kg-text-2: #56616f;
    --kg-text-3: #8b95a1;
    --kg-line: #e3e7ec;
    --kg-line-2: #eef1f4;
    --kg-bg: #f5f6f8;
    --kg-card: #ffffff;
    --kg-soft: #f0f3f7;

    --kg-r: 8px;
    --kg-r-s: 5px;
    --kg-shadow: 0 1px 2px rgba(28, 37, 48, .06);
    --kg-shadow-h: 0 4px 14px rgba(28, 37, 48, .09);

    background: var(--kg-bg);
    color: var(--kg-text);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
    min-height: 60vh;
    padding-bottom: 40px;
}

.ls-kg-root *,
.ls-kg-root *::before,
.ls-kg-root *::after { box-sizing: border-box; }

.ls-kg-wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.ls-kg-wrap-narrow { max-width: 860px; margin: 0 auto; padding: 0 16px; }

/* ---------- 平台导航 ---------- */
.ls-kg-nav {
    background: var(--kg-primary);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 60;
}
.ls-kg-nav-in {
    max-width: 1180px; margin: 0 auto; padding: 0 16px;
    display: flex; align-items: center; gap: 6px; height: 52px;
}
.ls-kg-logo {
    font-size: 17px; font-weight: 700; color: #fff; text-decoration: none;
    margin-right: 18px; letter-spacing: .5px; white-space: nowrap;
}
.ls-kg-logo:hover { color: #fff; opacity: .9; }
.ls-kg-nav-links { display: flex; gap: 2px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.ls-kg-nav-links::-webkit-scrollbar { display: none; }
.ls-kg-nav-links a {
    color: rgba(255, 255, 255, .78); text-decoration: none; font-size: 14px;
    padding: 7px 13px; border-radius: var(--kg-r-s); white-space: nowrap; transition: all .15s;
}
.ls-kg-nav-links a:hover { color: #fff; background: rgba(255, 255, 255, .1); }
.ls-kg-nav-links a.is-active { color: #fff; background: rgba(255, 255, 255, .16); font-weight: 600; }
.ls-kg-nav-user { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.ls-kg-nav-user img { width: 28px; height: 28px; border-radius: 50%; }
.ls-kg-nav-user a { color: rgba(255, 255, 255, .85); text-decoration: none; font-size: 13px; }
.ls-kg-nav-user a:hover { color: #fff; }

/* ---------- 通用卡片 / 标题 ---------- */
.ls-kg-card {
    background: var(--kg-card); border: 1px solid var(--kg-line);
    border-radius: var(--kg-r); box-shadow: var(--kg-shadow);
}
.ls-kg-card-pad { padding: 18px 20px; }

.ls-kg-sec { margin-top: 26px; }
.ls-kg-sec-hd {
    display: flex; align-items: baseline; justify-content: space-between;
    margin-bottom: 12px; gap: 12px;
}
.ls-kg-sec-hd h2 {
    font-size: 17px; font-weight: 700; margin: 0; color: var(--kg-text);
    padding-left: 10px; border-left: 3px solid var(--kg-primary); line-height: 1.3;
}
.ls-kg-sec-hd .ls-kg-more { font-size: 13px; color: var(--kg-text-3); text-decoration: none; }
.ls-kg-sec-hd .ls-kg-more:hover { color: var(--kg-primary); }

/* ---------- 按钮 ---------- */
.ls-kg-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 9px 18px; border-radius: var(--kg-r-s); border: 1px solid var(--kg-line);
    background: var(--kg-card); color: var(--kg-text); font-size: 14px; font-weight: 500;
    cursor: pointer; text-decoration: none; transition: all .15s; line-height: 1.4;
}
.ls-kg-btn:hover { border-color: var(--kg-primary); color: var(--kg-primary); }
.ls-kg-btn-primary { background: var(--kg-primary); border-color: var(--kg-primary); color: #fff; }
.ls-kg-btn-primary:hover { background: var(--kg-primary-h); border-color: var(--kg-primary-h); color: #fff; }
.ls-kg-btn-ghost { background: transparent; border-color: rgba(255, 255, 255, .4); color: #fff; }
.ls-kg-btn-ghost:hover { background: rgba(255, 255, 255, .12); color: #fff; border-color: #fff; }
.ls-kg-btn-lg { padding: 12px 26px; font-size: 15px; }
.ls-kg-btn-sm { padding: 5px 12px; font-size: 13px; }
.ls-kg-btn:disabled, .ls-kg-btn.is-disabled { opacity: .5; cursor: not-allowed; }
.ls-kg-btn-block { width: 100%; }

/* ---------- 首页头部 ---------- */
.ls-kg-hero { background: var(--kg-primary); color: #fff; padding: 30px 0 34px; }
.ls-kg-hero h1 { font-size: 25px; font-weight: 700; margin: 0 0 8px; color: #fff; letter-spacing: .5px; }
.ls-kg-hero p { margin: 0; color: rgba(255, 255, 255, .74); font-size: 14px; }
.ls-kg-hero-grid { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.ls-kg-hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.ls-kg-hero-stats { display: flex; gap: 30px; margin-top: 20px; flex-wrap: wrap; }
.ls-kg-hero-stat b { display: block; font-size: 24px; font-weight: 700; line-height: 1.2; color: #fff; }
.ls-kg-hero-stat span { font-size: 12px; color: rgba(255, 255, 255, .62); }

/* ---------- 统计条 ---------- */
.ls-kg-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.ls-kg-stat {
    background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r);
    padding: 15px 16px;
}
.ls-kg-stat b { display: block; font-size: 22px; font-weight: 700; line-height: 1.25; color: var(--kg-text); }
.ls-kg-stat b em { font-style: normal; font-size: 13px; font-weight: 500; color: var(--kg-text-3); margin-left: 2px; }
.ls-kg-stat span { font-size: 12px; color: var(--kg-text-3); }
.ls-kg-stat.is-hl b { color: var(--kg-primary); }

/* ---------- 筛选器 ---------- */
.ls-kg-filter { background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r); padding: 4px 16px; }
.ls-kg-filter-row {
    display: flex; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--kg-line-2);
    align-items: flex-start;
}
.ls-kg-filter-row:last-child { border-bottom: 0; }
.ls-kg-filter-label {
    flex: 0 0 62px; font-size: 13px; color: var(--kg-text-3); padding-top: 4px; line-height: 1.6;
}
.ls-kg-filter-opts { display: flex; flex-wrap: wrap; gap: 4px; flex: 1; }
.ls-kg-filter-opts a {
    font-size: 13px; color: var(--kg-text-2); text-decoration: none;
    padding: 3px 11px; border-radius: 20px; transition: all .13s; line-height: 1.7;
}
.ls-kg-filter-opts a:hover { color: var(--kg-primary); background: var(--kg-soft); }
.ls-kg-filter-opts a.is-on { background: var(--kg-primary); color: #fff; font-weight: 500; }
.ls-kg-filter-opts a.is-sub { padding-left: 8px; opacity: .88; }
.ls-kg-filter-opts a.is-sub::before { content: ''; }

.ls-kg-filter-bar {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; margin: 14px 0 12px; flex-wrap: wrap;
}
.ls-kg-filter-count { font-size: 13px; color: var(--kg-text-3); }
.ls-kg-filter-count b { color: var(--kg-primary); font-size: 15px; }
.ls-kg-sortbar { display: flex; gap: 3px; }
.ls-kg-sortbar a {
    font-size: 13px; color: var(--kg-text-2); text-decoration: none;
    padding: 5px 12px; border-radius: var(--kg-r-s);
}
.ls-kg-sortbar a.is-on { background: var(--kg-card); color: var(--kg-primary); font-weight: 600; border: 1px solid var(--kg-line); }

/* ---------- 题目列表项 ---------- */
.ls-kg-qlist { display: grid; gap: 10px; }
.ls-kg-qitem {
    background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r);
    padding: 15px 18px; transition: all .15s; position: relative;
}
.ls-kg-qitem:hover { border-color: #cfd6de; box-shadow: var(--kg-shadow-h); }
.ls-kg-qitem-hd { display: flex; gap: 8px; align-items: center; margin-bottom: 7px; flex-wrap: wrap; }
.ls-kg-qitem-title {
    font-size: 15px; font-weight: 500; color: var(--kg-text); text-decoration: none;
    display: block; line-height: 1.65; margin-bottom: 8px;
}
.ls-kg-qitem-title:hover { color: var(--kg-primary); }
.ls-kg-qitem-meta {
    display: flex; gap: 14px; font-size: 12px; color: var(--kg-text-3); flex-wrap: wrap; align-items: center;
}

/* 标签 */
.ls-kg-tag {
    display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 3px;
    background: var(--kg-soft); color: var(--kg-text-2); line-height: 1.8; white-space: nowrap;
}
.ls-kg-tag-cat { background: #e8eef6; color: var(--kg-primary); }
.ls-kg-tag-easy { background: #e6f4ec; color: var(--kg-ok); }
.ls-kg-tag-medium { background: #fdf3e0; color: var(--kg-warn); }
.ls-kg-tag-hard { background: #fbeae8; color: var(--kg-err); }
.ls-kg-tag-year { background: #f0f0f2; color: #5a6472; }
.ls-kg-tag-done { background: #eef1f4; color: var(--kg-text-3); }

/* ---------- 做题区 ---------- */
.ls-kg-stage { display: grid; grid-template-columns: 1fr 250px; gap: 16px; align-items: start; }
.ls-kg-stage-main { min-width: 0; }
.ls-kg-stage-side { position: sticky; top: 68px; }

.ls-kg-q {
    background: var(--kg-card); border: 1px solid var(--kg-line);
    border-radius: var(--kg-r); padding: 22px 24px;
}
.ls-kg-q-hd {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    padding-bottom: 12px; margin-bottom: 16px; border-bottom: 1px solid var(--kg-line-2);
}
.ls-kg-q-no { font-size: 13px; color: var(--kg-text-3); font-weight: 600; margin-right: 2px; }
.ls-kg-q-body { font-size: 16px; line-height: 1.85; color: var(--kg-text); margin-bottom: 18px; }
.ls-kg-q-body p { margin: 0 0 10px; }
.ls-kg-q-body p:last-child { margin-bottom: 0; }
.ls-kg-q-body img { max-width: 100%; height: auto; }

.ls-kg-opts { display: grid; gap: 9px; }
.ls-kg-opt {
    display: flex; gap: 11px; align-items: flex-start;
    padding: 12px 15px; border: 1px solid var(--kg-line); border-radius: var(--kg-r-s);
    cursor: pointer; transition: all .13s; background: var(--kg-card); user-select: none;
}
.ls-kg-opt:hover { border-color: var(--kg-primary-l); background: #fafbfc; }
.ls-kg-opt-key {
    flex: 0 0 24px; height: 24px; border-radius: 50%; border: 1px solid var(--kg-line);
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 600; color: var(--kg-text-2); background: var(--kg-card);
    transition: all .13s;
}
.ls-kg-opt-text { flex: 1; font-size: 15px; line-height: 1.65; padding-top: 1px; }
.ls-kg-opt.is-picked { border-color: var(--kg-primary); background: #f2f6fb; }
.ls-kg-opt.is-picked .ls-kg-opt-key { background: var(--kg-primary); border-color: var(--kg-primary); color: #fff; }
.ls-kg-opt.is-right { border-color: var(--kg-ok); background: #f1f9f4; }
.ls-kg-opt.is-right .ls-kg-opt-key { background: var(--kg-ok); border-color: var(--kg-ok); color: #fff; }
.ls-kg-opt.is-wrong { border-color: var(--kg-err); background: #fdf3f2; }
.ls-kg-opt.is-wrong .ls-kg-opt-key { background: var(--kg-err); border-color: var(--kg-err); color: #fff; }
.ls-kg-opt.is-locked { cursor: default; }
.ls-kg-opt.is-locked:hover { border-color: var(--kg-line); background: var(--kg-card); }
.ls-kg-opt.is-locked.is-right:hover { border-color: var(--kg-ok); background: #f1f9f4; }
.ls-kg-opt.is-locked.is-wrong:hover { border-color: var(--kg-err); background: #fdf3f2; }

.ls-kg-fill { width: 100%; padding: 11px 14px; border: 1px solid var(--kg-line); border-radius: var(--kg-r-s); font-size: 15px; font-family: inherit; }
.ls-kg-fill:focus { outline: none; border-color: var(--kg-primary); }

.ls-kg-q-ft {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--kg-line-2); flex-wrap: wrap;
}
.ls-kg-q-tools { display: flex; gap: 8px; }
.ls-kg-icon-btn {
    background: none; border: 0; color: var(--kg-text-3); cursor: pointer;
    font-size: 13px; padding: 5px 8px; border-radius: var(--kg-r-s);
}
.ls-kg-icon-btn:hover { color: var(--kg-primary); background: var(--kg-soft); }
.ls-kg-icon-btn.is-on { color: var(--kg-accent); }

/* 判分结果 */
.ls-kg-result { margin-top: 16px; border-radius: var(--kg-r-s); overflow: hidden; border: 1px solid var(--kg-line); }
.ls-kg-result-hd {
    padding: 11px 16px; font-size: 14px; font-weight: 600;
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.ls-kg-result.is-right .ls-kg-result-hd { background: #eaf6ef; color: var(--kg-ok); }
.ls-kg-result.is-wrong .ls-kg-result-hd { background: #fbeeec; color: var(--kg-err); }
.ls-kg-result-hd small { font-weight: 400; color: var(--kg-text-2); font-size: 12px; margin-left: auto; }
.ls-kg-result-bd { padding: 15px 16px; background: var(--kg-card); font-size: 14px; line-height: 1.85; color: var(--kg-text-2); }
.ls-kg-result-bd h4 { font-size: 13px; color: var(--kg-text); margin: 0 0 8px; font-weight: 600; }
.ls-kg-result-bd p { margin: 0 0 10px; }
.ls-kg-result-bd p:last-child { margin-bottom: 0; }

/* 侧栏答题卡 */
.ls-kg-panel { background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r); padding: 15px 16px; }
.ls-kg-panel + .ls-kg-panel { margin-top: 12px; }
.ls-kg-panel h3 { font-size: 14px; font-weight: 600; margin: 0 0 12px; color: var(--kg-text); }
.ls-kg-panel-list { display: grid; gap: 9px; font-size: 13px; }
.ls-kg-panel-row { display: flex; justify-content: space-between; color: var(--kg-text-2); }
.ls-kg-panel-row b { color: var(--kg-text); font-weight: 600; }

.ls-kg-sheet { display: grid; grid-template-columns: repeat(auto-fill, minmax(34px, 1fr)); gap: 6px; }
.ls-kg-sheet a, .ls-kg-sheet button {
    aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--kg-line); border-radius: var(--kg-r-s); background: var(--kg-card);
    font-size: 12px; color: var(--kg-text-2); text-decoration: none; cursor: pointer;
    transition: all .12s; padding: 0; font-family: inherit;
}
.ls-kg-sheet a:hover, .ls-kg-sheet button:hover { border-color: var(--kg-primary); color: var(--kg-primary); }
.ls-kg-sheet .is-done { background: #eef1f4; color: var(--kg-text-3); }
.ls-kg-sheet .is-answered { background: var(--kg-primary); border-color: var(--kg-primary); color: #fff; }
.ls-kg-sheet .is-right { background: #e6f4ec; border-color: #b7e0c7; color: var(--kg-ok); }
.ls-kg-sheet .is-wrong { background: #fbeae8; border-color: #f0c4be; color: var(--kg-err); }
.ls-kg-sheet .is-cur { outline: 2px solid var(--kg-primary); outline-offset: 1px; font-weight: 700; }
.ls-kg-sheet .is-marked::after {
    content: ''; position: absolute; width: 6px; height: 6px; background: var(--kg-warn);
    border-radius: 50%; margin: -14px 0 0 22px;
}
.ls-kg-sheet-legend { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 12px; font-size: 11px; color: var(--kg-text-3); }
.ls-kg-sheet-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; }

/* ---------- 考场 ---------- */
.ls-kg-exam-bar {
    position: sticky; top: 0; z-index: 70; background: var(--kg-primary); color: #fff;
    padding: 10px 0;
}
.ls-kg-exam-bar-in {
    max-width: 1180px; margin: 0 auto; padding: 0 16px;
    display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
}
.ls-kg-exam-title { font-size: 15px; font-weight: 600; color: #fff; }
.ls-kg-exam-title small { display: block; font-size: 12px; color: rgba(255, 255, 255, .6); font-weight: 400; }
.ls-kg-clock {
    font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums;
    letter-spacing: 1px; padding: 2px 14px; border-radius: var(--kg-r-s);
    background: rgba(255, 255, 255, .12);
}
.ls-kg-clock.is-urgent { background: var(--kg-accent); animation: kgPulse 1.4s ease-in-out infinite; }
@keyframes kgPulse { 0%, 100% { opacity: 1; } 50% { opacity: .62; } }
.ls-kg-clock-hint { font-size: 11px; color: rgba(255, 255, 255, .55); text-align: center; margin-top: 2px; }

/* ---------- 成绩报告 ---------- */
.ls-kg-score-card {
    background: var(--kg-primary); color: #fff; border-radius: var(--kg-r);
    padding: 26px 28px; display: flex; align-items: center; gap: 34px; flex-wrap: wrap;
}
.ls-kg-score-num { line-height: 1; }
.ls-kg-score-num b { font-size: 52px; font-weight: 700; letter-spacing: -1px; }
.ls-kg-score-num i { font-style: normal; font-size: 18px; color: rgba(255, 255, 255, .62); }
.ls-kg-score-num span { display: block; font-size: 12px; color: rgba(255, 255, 255, .62); margin-top: 8px; }
.ls-kg-score-meta { display: flex; gap: 32px; flex-wrap: wrap; }
.ls-kg-score-meta div b { display: block; font-size: 19px; font-weight: 700; }
.ls-kg-score-meta div span { font-size: 12px; color: rgba(255, 255, 255, .62); }
.ls-kg-badge-pass {
    display: inline-block; padding: 3px 12px; border-radius: 20px; font-size: 12px; font-weight: 600;
    background: rgba(255, 255, 255, .16);
}

/* 模块得分条 */
.ls-kg-bars { display: grid; gap: 13px; }
.ls-kg-bar-row { display: grid; grid-template-columns: 96px 1fr 62px; gap: 12px; align-items: center; font-size: 13px; }
.ls-kg-bar-name { color: var(--kg-text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ls-kg-bar-track { height: 8px; background: var(--kg-soft); border-radius: 4px; overflow: hidden; }
.ls-kg-bar-fill { height: 100%; background: var(--kg-primary); border-radius: 4px; transition: width .5s ease; }
.ls-kg-bar-fill.is-low { background: var(--kg-err); }
.ls-kg-bar-fill.is-mid { background: var(--kg-warn); }
.ls-kg-bar-fill.is-high { background: var(--kg-ok); }
.ls-kg-bar-val { text-align: right; color: var(--kg-text); font-weight: 600; font-variant-numeric: tabular-nums; }

/* 趋势柱 */
.ls-kg-trend { display: flex; align-items: flex-end; gap: 5px; height: 96px; }
.ls-kg-trend-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 5px; min-width: 0; }
.ls-kg-trend-bar {
    width: 100%; background: var(--kg-primary); border-radius: 2px 2px 0 0; min-height: 2px;
    transition: height .4s ease;
}
.ls-kg-trend-bar.is-zero { background: var(--kg-line); }
.ls-kg-trend-lbl { font-size: 10px; color: var(--kg-text-3); white-space: nowrap; }

/* ---------- 今日任务 ---------- */
.ls-kg-plan { display: grid; gap: 10px; }
.ls-kg-plan-item {
    display: flex; align-items: center; gap: 14px; padding: 14px 16px;
    background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r);
    text-decoration: none; color: inherit; transition: all .15s;
}
.ls-kg-plan-item:hover { border-color: var(--kg-primary-l); box-shadow: var(--kg-shadow-h); }
.ls-kg-plan-item.is-done { opacity: .62; }
.ls-kg-plan-ico {
    flex: 0 0 38px; height: 38px; border-radius: var(--kg-r-s); background: var(--kg-soft);
    display: flex; align-items: center; justify-content: center; font-size: 17px;
}
.ls-kg-plan-main { flex: 1; min-width: 0; }
.ls-kg-plan-main b { display: block; font-size: 14px; font-weight: 600; margin-bottom: 3px; }
.ls-kg-plan-main span { font-size: 12px; color: var(--kg-text-3); }
.ls-kg-plan-prog { flex: 0 0 90px; text-align: right; }
.ls-kg-plan-prog b { font-size: 15px; font-weight: 700; color: var(--kg-primary); font-variant-numeric: tabular-nums; }
.ls-kg-plan-prog span { font-size: 12px; color: var(--kg-text-3); }
.ls-kg-plan-track { height: 4px; background: var(--kg-soft); border-radius: 2px; margin-top: 5px; overflow: hidden; }
.ls-kg-plan-track i { display: block; height: 100%; background: var(--kg-primary); border-radius: 2px; }

/* ---------- 模块入口网格 ---------- */
.ls-kg-mods { display: grid; grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); gap: 12px; }
.ls-kg-mod {
    background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r);
    padding: 17px 18px; text-decoration: none; color: inherit; transition: all .15s; display: block;
}
.ls-kg-mod:hover { border-color: var(--kg-primary); box-shadow: var(--kg-shadow-h); transform: translateY(-1px); }
.ls-kg-mod b { display: block; font-size: 15px; font-weight: 600; margin-bottom: 5px; color: var(--kg-text); }
.ls-kg-mod p { margin: 0 0 10px; font-size: 12px; color: var(--kg-text-3); line-height: 1.6; }
.ls-kg-mod-stat { font-size: 12px; color: var(--kg-primary); font-weight: 600; }
.ls-kg-mod-sub { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
.ls-kg-mod-sub span { font-size: 11px; color: var(--kg-text-3); background: var(--kg-soft); padding: 1px 7px; border-radius: 3px; }

/* ---------- 试卷列表 ---------- */
.ls-kg-papers { display: grid; grid-template-columns: repeat(auto-fill, minmax(272px, 1fr)); gap: 12px; }
.ls-kg-paper {
    background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r);
    padding: 17px 18px; display: flex; flex-direction: column; gap: 10px;
}
.ls-kg-paper:hover { border-color: #cfd6de; box-shadow: var(--kg-shadow-h); }
.ls-kg-paper h3 { font-size: 15px; font-weight: 600; margin: 0; line-height: 1.55; }
.ls-kg-paper h3 a { color: var(--kg-text); text-decoration: none; }
.ls-kg-paper h3 a:hover { color: var(--kg-primary); }
.ls-kg-paper-meta { font-size: 12px; color: var(--kg-text-3); display: flex; gap: 14px; flex-wrap: wrap; }
.ls-kg-paper-ft { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; }
.ls-kg-paper-best { font-size: 12px; color: var(--kg-text-3); }
.ls-kg-paper-best b { color: var(--kg-primary); font-size: 14px; }

/* ---------- 错题本 ---------- */
.ls-kg-wrong-item {
    background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r);
    padding: 16px 18px;
}
.ls-kg-wrong-item + .ls-kg-wrong-item { margin-top: 10px; }
.ls-kg-wrong-hd { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; }
.ls-kg-wrong-times { font-size: 11px; padding: 1px 7px; border-radius: 3px; background: #fbeae8; color: var(--kg-err); }
.ls-kg-wrong-q { font-size: 15px; line-height: 1.7; margin-bottom: 10px; color: var(--kg-text); }
.ls-kg-wrong-ans { display: flex; gap: 20px; font-size: 13px; margin-bottom: 10px; flex-wrap: wrap; }
.ls-kg-wrong-ans span { color: var(--kg-text-3); }
.ls-kg-wrong-ans b { font-weight: 600; }
.ls-kg-wrong-ans .mine { color: var(--kg-err); }
.ls-kg-wrong-ans .right { color: var(--kg-ok); }
.ls-kg-wrong-exp {
    font-size: 13px; line-height: 1.8; color: var(--kg-text-2);
    background: var(--kg-soft); padding: 12px 14px; border-radius: var(--kg-r-s); margin-bottom: 10px;
}
.ls-kg-wrong-ft { display: flex; gap: 8px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.ls-kg-wrong-next { font-size: 12px; color: var(--kg-text-3); }

/* ---------- 社区 ---------- */
.ls-kg-topic {
    display: flex; gap: 14px; padding: 15px 18px; background: var(--kg-card);
    border: 1px solid var(--kg-line); border-radius: var(--kg-r); transition: all .15s;
}
.ls-kg-topic + .ls-kg-topic { margin-top: 9px; }
.ls-kg-topic:hover { border-color: #cfd6de; }
.ls-kg-topic-avatar { flex: 0 0 40px; }
.ls-kg-topic-avatar img { width: 40px; height: 40px; border-radius: 50%; display: block; }
.ls-kg-topic-main { flex: 1; min-width: 0; }
.ls-kg-topic-main h3 { font-size: 15px; font-weight: 600; margin: 0 0 5px; line-height: 1.55; }
.ls-kg-topic-main h3 a { color: var(--kg-text); text-decoration: none; }
.ls-kg-topic-main h3 a:hover { color: var(--kg-primary); }
.ls-kg-topic-excerpt { font-size: 13px; color: var(--kg-text-2); line-height: 1.7; margin: 0 0 7px; }
.ls-kg-topic-meta { font-size: 12px; color: var(--kg-text-3); display: flex; gap: 14px; flex-wrap: wrap; }

.ls-kg-reply { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--kg-line-2); }
.ls-kg-reply:last-child { border-bottom: 0; }
.ls-kg-reply img { width: 34px; height: 34px; border-radius: 50%; flex: 0 0 34px; }
.ls-kg-reply-main { flex: 1; min-width: 0; }
.ls-kg-reply-hd { display: flex; gap: 10px; align-items: baseline; margin-bottom: 4px; }
.ls-kg-reply-hd b { font-size: 13px; font-weight: 600; }
.ls-kg-reply-hd span { font-size: 12px; color: var(--kg-text-3); }
.ls-kg-reply-bd { font-size: 14px; line-height: 1.8; color: var(--kg-text-2); }
.ls-kg-reply-bd p { margin: 0 0 8px; }
.ls-kg-reply-bd p:last-child { margin-bottom: 0; }
.ls-kg-reply-ft { margin-top: 6px; display: flex; gap: 14px; }

.ls-kg-editor textarea {
    width: 100%; min-height: 92px; padding: 12px 14px; border: 1px solid var(--kg-line);
    border-radius: var(--kg-r-s); font-size: 14px; font-family: inherit; line-height: 1.7; resize: vertical;
}
.ls-kg-editor textarea:focus { outline: none; border-color: var(--kg-primary); }
.ls-kg-editor input[type=text] {
    width: 100%; padding: 10px 14px; border: 1px solid var(--kg-line);
    border-radius: var(--kg-r-s); font-size: 15px; font-family: inherit; margin-bottom: 10px;
}
.ls-kg-editor input[type=text]:focus { outline: none; border-color: var(--kg-primary); }
.ls-kg-editor-ft { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; gap: 12px; }
.ls-kg-editor-ft small { color: var(--kg-text-3); font-size: 12px; }

/* ---------- 空状态 / 提示 ---------- */
.ls-kg-empty { text-align: center; padding: 46px 20px; color: var(--kg-text-3); }
.ls-kg-empty b { display: block; font-size: 15px; color: var(--kg-text-2); margin-bottom: 6px; font-weight: 600; }
.ls-kg-empty p { margin: 0 0 16px; font-size: 13px; }

.ls-kg-note {
    background: #fdf8ec; border: 1px solid #f0e2c0; border-radius: var(--kg-r-s);
    padding: 12px 15px; font-size: 13px; color: #7a5c15; line-height: 1.7;
}
.ls-kg-note-info { background: #eef4fb; border-color: #cfdff2; color: #2b4f7a; }

/* ---------- 分页 ---------- */
.ls-kg-pager { display: flex; justify-content: center; gap: 5px; margin-top: 24px; flex-wrap: wrap; }
.ls-kg-pager a, .ls-kg-pager span {
    min-width: 34px; height: 34px; padding: 0 11px; display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--kg-line); border-radius: var(--kg-r-s); background: var(--kg-card);
    color: var(--kg-text-2); text-decoration: none; font-size: 13px;
}
.ls-kg-pager a:hover { border-color: var(--kg-primary); color: var(--kg-primary); }
.ls-kg-pager .current { background: var(--kg-primary); border-color: var(--kg-primary); color: #fff; font-weight: 600; }

/* ---------- 轻提示 ---------- */
.ls-kg-toast {
    position: fixed; left: 50%; bottom: 76px; transform: translateX(-50%) translateY(12px);
    background: rgba(28, 37, 48, .93); color: #fff; padding: 10px 20px; border-radius: 20px;
    font-size: 14px; z-index: 9999; opacity: 0; pointer-events: none; transition: all .22s;
}
.ls-kg-toast.is-show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 移动端底部导航 ---------- */
.ls-kg-tabbar { display: none; }

/* ==========================================================================
   新增：考场 / 报告 / 仪表盘 / 错题本 / 社区
   ========================================================================== */

/* 考场标题副信息 */
.ls-kg-exam-title span { display: block; font-size: 12px; color: rgba(255, 255, 255, .6); font-weight: 400; margin-top: 2px; }

/* ---------- 成绩报告 ---------- */
.ls-kg-score-card.is-fail { background: #6b2230; }
.ls-kg-score-main { display: flex; flex-direction: column; gap: 6px; }
.ls-kg-score-side { display: flex; gap: 18px; flex-wrap: wrap; align-items: flex-start; margin-left: auto; }
.ls-kg-score-cell { display: flex; flex-direction: column; align-items: center; min-width: 54px; }
.ls-kg-score-cell b { font-size: 20px; font-weight: 700; line-height: 1.2; }
.ls-kg-score-cell span { font-size: 11px; color: rgba(255, 255, 255, .6); margin-top: 2px; }
.ls-kg-score-cell-wide { align-items: flex-start; }
.ls-kg-score-cell-wide b { font-size: 22px; }
.ls-kg-score-meta > span:not(.ls-kg-badge-pass) { font-size: 13px; color: rgba(255, 255, 255, .62); }
.ls-kg-badge-pass.is-pass { background: rgba(30, 142, 78, .25); color: #cdeedd; }
.ls-kg-badge-pass.is-fail { background: rgba(192, 57, 43, .28); color: #f6cfc9; }
.ls-kg-report-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }

/* 趋势柱当前点 + 数值 */
.ls-kg-trend-bar.is-cur { background: var(--kg-accent); }
.ls-kg-trend-val { font-size: 11px; color: var(--kg-text-2); font-weight: 600; }

/* 选项标记徽标（回顾 / 错题本共用） */
.ls-kg-opt-flag { font-style: normal; font-size: 10px; margin-left: auto; color: var(--kg-ok); opacity: .85; }
.ls-kg-opt-flag.is-wrong { color: var(--kg-err); }

/* 逐题回顾 */
.ls-kg-review { display: grid; gap: 12px; }
.ls-kg-review-item { background: var(--kg-card); border: 1px solid var(--kg-line); border-radius: var(--kg-r); padding: 16px 18px; border-left: 4px solid var(--kg-line); }
.ls-kg-review-item.is-right { border-left-color: var(--kg-ok); }
.ls-kg-review-item.is-wrong { border-left-color: var(--kg-err); }
.ls-kg-review-item.is-blank { border-left-color: var(--kg-warn); }
.ls-kg-review-hd { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.ls-kg-review-hd .ls-kg-more { margin-left: auto; }
.ls-kg-mark { font-size: 11px; padding: 2px 9px; border-radius: 20px; font-weight: 600; }
.ls-kg-mark.is-right { background: #e6f4ec; color: var(--kg-ok); }
.ls-kg-mark.is-wrong { background: #fbeae8; color: var(--kg-err); }
.ls-kg-mark.is-blank { background: #fdf3e0; color: var(--kg-warn); }
.ls-kg-review-body { font-size: 15px; line-height: 1.75; margin-bottom: 12px; color: var(--kg-text); }
.ls-kg-review-opts { display: grid; gap: 8px; margin-bottom: 12px; }
.ls-kg-review-opt { display: flex; gap: 11px; align-items: flex-start; padding: 10px 14px; border: 1px solid var(--kg-line); border-radius: var(--kg-r-s); background: var(--kg-card); }
.ls-kg-review-opt .ls-kg-opt-key { flex: 0 0 24px; height: 24px; border-radius: 50%; border: 1px solid var(--kg-line); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; color: var(--kg-text-2); }
.ls-kg-review-opt.is-right { border-color: var(--kg-ok); background: #f1f9f4; }
.ls-kg-review-opt.is-right .ls-kg-opt-key { background: var(--kg-ok); border-color: var(--kg-ok); color: #fff; }
.ls-kg-review-opt.is-wrong { border-color: var(--kg-err); background: #fdf3f2; }
.ls-kg-review-opt.is-wrong .ls-kg-opt-key { background: var(--kg-err); border-color: var(--kg-err); color: #fff; }
.ls-kg-review-fill { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 12px; font-size: 14px; }
.ls-kg-review-fill span { color: var(--kg-text-3); }
.ls-kg-review-fill b { font-weight: 600; }
.ls-kg-review-fill b.is-right { color: var(--kg-ok); }
.ls-kg-review-fill b.is-wrong { color: var(--kg-err); }
.ls-kg-review-exp { font-size: 13px; line-height: 1.8; color: var(--kg-text-2); background: var(--kg-soft); padding: 12px 14px; border-radius: var(--kg-r-s); }

/* ---------- 仪表盘 ---------- */
.ls-kg-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.ls-kg-radar-wrap { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.ls-kg-radar { width: 260px; height: 260px; flex: 0 0 260px; }
.ls-kg-radar-grid line, .ls-kg-radar-grid circle { fill: none; stroke: #e3e7ec; stroke-width: 1; }
.ls-kg-radar-poly { fill: rgba(31, 58, 95, .14); stroke: var(--kg-primary); stroke-width: 2; }
.ls-kg-radar text { font-size: 11px; fill: var(--kg-text-2); }
.ls-kg-radar-legend { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--kg-text-2); }
.ls-kg-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; vertical-align: 0; }
.ls-kg-dot.is-high { background: var(--kg-ok); }
.ls-kg-dot.is-mid { background: var(--kg-warn); }
.ls-kg-dot.is-low { background: var(--kg-err); }
.ls-kg-plan-fill { display: block; height: 100%; background: var(--kg-primary); border-radius: 2px; }
.ls-kg-bar-link { text-decoration: none; color: inherit; }
.ls-kg-bar-link:hover .ls-kg-bar-name { color: var(--kg-primary); }

/* ---------- 错题本 ---------- */
.ls-kg-wrong-list { display: grid; gap: 10px; }
.ls-kg-wrong-opts { display: grid; gap: 8px; margin-bottom: 10px; }
.ls-kg-wrong-opt { display: flex; gap: 11px; align-items: flex-start; padding: 10px 14px; border: 1px solid var(--kg-line); border-radius: var(--kg-r-s); background: var(--kg-card); }
.ls-kg-wrong-opt .ls-kg-opt-key { flex: 0 0 24px; height: 24px; border-radius: 50%; border: 1px solid var(--kg-line); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; color: var(--kg-text-2); }
.ls-kg-wrong-opt.is-right { border-color: var(--kg-ok); background: #f1f9f4; }
.ls-kg-wrong-opt.is-right .ls-kg-opt-key { background: var(--kg-ok); border-color: var(--kg-ok); color: #fff; }
.ls-kg-wrong-opt.is-wrong { border-color: var(--kg-err); background: #fdf3f2; }
.ls-kg-wrong-opt.is-wrong .ls-kg-opt-key { background: var(--kg-err); border-color: var(--kg-err); color: #fff; }
.ls-kg-wrong-next.is-due { color: var(--kg-accent); font-weight: 600; }
.ls-kg-wrong-next.is-mastered { color: var(--kg-ok); }
.ls-kg-btn-ok { background: var(--kg-ok); border-color: var(--kg-ok); color: #fff; }
.ls-kg-btn-ok:hover { background: #19793f; border-color: #19793f; color: #fff; }
.ls-kg-btn-danger { background: #fff; border-color: #f0c4be; color: var(--kg-err); }
.ls-kg-btn-danger:hover { background: #fdf3f2; border-color: var(--kg-err); color: var(--kg-err); }

/* ---------- 社区 ---------- */
.ls-kg-community-grid { display: grid; grid-template-columns: 1fr 280px; gap: 16px; align-items: start; }
.ls-kg-community-main { min-width: 0; }
.ls-kg-community-side { position: sticky; top: 68px; }
.ls-kg-topics { display: grid; gap: 9px; }
.ls-kg-topic-avatar { width: 40px; height: 40px; border-radius: 50%; display: block; object-fit: cover; }
.ls-kg-topic-detail-hd { margin-bottom: 12px; }
.ls-kg-topic-detail-hd h1 { font-size: 20px; margin: 8px 0 10px; line-height: 1.4; }
.ls-kg-topic-content { font-size: 15px; line-height: 1.9; color: var(--kg-text); }
.ls-kg-topic-content p { margin: 0 0 12px; }
.ls-kg-topic-content img { max-width: 100%; height: auto; }
.ls-kg-replies { display: grid; gap: 0; }
.ls-kg-reply-body { font-size: 14px; line-height: 1.8; color: var(--kg-text-2); }
.ls-kg-reply-body p { margin: 0 0 8px; }
.ls-kg-reply-body p:last-child { margin-bottom: 0; }
.ls-kg-vote { background: none; border: 1px solid var(--kg-line); border-radius: 20px; padding: 3px 12px; font-size: 12px; color: var(--kg-text-2); cursor: pointer; transition: all .15s; }
.ls-kg-vote:hover { border-color: var(--kg-primary); color: var(--kg-primary); }
.ls-kg-vote.is-on { border-color: var(--kg-primary); color: var(--kg-primary); background: var(--kg-soft); }
.ls-kg-select { width: 100%; padding: 10px 14px; border: 1px solid var(--kg-line); border-radius: var(--kg-r-s); font-size: 15px; font-family: inherit; margin-bottom: 10px; background: var(--kg-card); }
.ls-kg-select:focus { outline: none; border-color: var(--kg-primary); }
.ls-kg-search { display: flex; gap: 6px; }
.ls-kg-search input[type=text] { padding: 7px 12px; border: 1px solid var(--kg-line); border-radius: var(--kg-r-s); font-size: 13px; font-family: inherit; width: 160px; }
.ls-kg-search input[type=text]:focus { outline: none; border-color: var(--kg-primary); }
.ls-kg-panel-row img { border-radius: 50%; }
a.ls-kg-panel-row { text-decoration: none; color: inherit; }
a.ls-kg-panel-row:hover { color: var(--kg-primary); }

@media (max-width: 1024px) {
    .ls-kg-grid-2 { grid-template-columns: 1fr; }
    .ls-kg-community-grid { grid-template-columns: 1fr; }
    .ls-kg-community-side { position: static; }
}
@media (max-width: 768px) {
    .ls-kg-radar { width: 220px; height: 220px; flex-basis: 220px; }
    .ls-kg-score-side { width: 100%; margin-left: 0; }
    .ls-kg-community-side { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .ls-kg-community-side .ls-kg-panel { margin: 0; }
    .ls-kg-community-side .ls-kg-panel + .ls-kg-panel { margin-top: 0; }
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 1024px) {
    .ls-kg-stage { grid-template-columns: 1fr; }
    .ls-kg-stage-side { position: static; }
}

@media (max-width: 768px) {
    .ls-kg-root { font-size: 14.5px; padding-bottom: 68px; }
    .ls-kg-wrap, .ls-kg-wrap-narrow { padding: 0 12px; }

    .ls-kg-nav-in { height: 48px; }
    .ls-kg-logo { font-size: 16px; margin-right: 10px; }
    .ls-kg-nav-links { display: none; }
    .ls-kg-nav-user { margin-left: auto; }

    .ls-kg-hero { padding: 22px 0 24px; }
    .ls-kg-hero h1 { font-size: 20px; }
    .ls-kg-hero-grid { flex-direction: column; align-items: stretch; gap: 16px; }
    .ls-kg-hero-actions .ls-kg-btn { flex: 1; }
    .ls-kg-hero-stats { gap: 0; justify-content: space-between; }
    .ls-kg-hero-stat b { font-size: 20px; }

    .ls-kg-stats { grid-template-columns: repeat(2, 1fr); gap: 9px; }
    .ls-kg-stat { padding: 12px 13px; }
    .ls-kg-stat b { font-size: 19px; }

    .ls-kg-sec { margin-top: 20px; }
    .ls-kg-sec-hd h2 { font-size: 16px; }

    .ls-kg-filter { padding: 2px 13px; }
    .ls-kg-filter-row { flex-direction: column; gap: 6px; padding: 10px 0; }
    .ls-kg-filter-label { flex: none; padding-top: 0; font-size: 12px; }
    .ls-kg-filter-opts { gap: 3px; }
    .ls-kg-filter-opts a { font-size: 12.5px; padding: 3px 10px; }

    .ls-kg-q { padding: 16px 15px; border-radius: var(--kg-r); }
    .ls-kg-q-body { font-size: 15.5px; line-height: 1.8; }
    .ls-kg-opt { padding: 11px 12px; gap: 9px; }
    .ls-kg-opt-text { font-size: 14.5px; }
    .ls-kg-q-ft { flex-direction: column-reverse; align-items: stretch; gap: 10px; }
    .ls-kg-q-ft .ls-kg-btn { width: 100%; padding: 12px; }
    .ls-kg-q-tools { justify-content: space-around; }

    .ls-kg-score-card { padding: 20px; gap: 20px; }
    .ls-kg-score-num b { font-size: 42px; }
    .ls-kg-score-meta { gap: 22px; }
    .ls-kg-score-meta div b { font-size: 17px; }

    .ls-kg-bar-row { grid-template-columns: 76px 1fr 48px; gap: 9px; font-size: 12.5px; }
    .ls-kg-mods { grid-template-columns: repeat(2, 1fr); gap: 9px; }
    .ls-kg-mod { padding: 14px; }
    .ls-kg-mod b { font-size: 14px; }
    .ls-kg-papers { grid-template-columns: 1fr; }

    .ls-kg-exam-bar-in { gap: 8px; }
    .ls-kg-exam-title { font-size: 13px; flex: 1; min-width: 0; }
    .ls-kg-clock { font-size: 19px; padding: 2px 11px; }

    .ls-kg-plan-item { padding: 12px 13px; gap: 11px; }
    .ls-kg-plan-ico { flex-basis: 34px; height: 34px; font-size: 15px; }
    .ls-kg-plan-prog { flex-basis: 66px; }

    .ls-kg-trend { height: 76px; gap: 3px; }
    .ls-kg-trend-lbl { font-size: 9px; }

    .ls-kg-sheet { grid-template-columns: repeat(auto-fill, minmax(38px, 1fr)); }

    /* 移动端底部导航 */
    .ls-kg-tabbar {
        display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
        background: var(--kg-card); border-top: 1px solid var(--kg-line);
        padding-bottom: env(safe-area-inset-bottom);
    }
    .ls-kg-tabbar a {
        flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
        padding: 7px 0 6px; text-decoration: none; color: var(--kg-text-3); font-size: 11px;
    }
    .ls-kg-tabbar a i { font-style: normal; font-size: 18px; line-height: 1.15; }
    .ls-kg-tabbar a.is-active { color: var(--kg-primary); font-weight: 600; }
    .ls-kg-tabbar-badge {
        position: absolute; margin: -4px 0 0 15px; min-width: 15px; height: 15px; padding: 0 4px;
        background: var(--kg-accent); color: #fff; border-radius: 8px;
        font-size: 10px; line-height: 15px; text-align: center; font-weight: 600;
    }
}

@media (max-width: 400px) {
    .ls-kg-mods { grid-template-columns: 1fr; }
    .ls-kg-hero-stats { flex-wrap: wrap; gap: 12px 0; }
    .ls-kg-hero-stat { flex: 0 0 50%; }
    .ls-kg-score-num b { font-size: 36px; }
}

/* 打印：错题本导出 */
@media print {
    .ls-kg-nav, .ls-kg-tabbar, .ls-kg-btn, .ls-kg-filter, .ls-kg-pager { display: none !important; }
    .ls-kg-root { background: #fff; padding: 0; }
    .ls-kg-wrong-item { break-inside: avoid; border-color: #ccc; }
}