/* ============================================================
   证券从业刷题系统 — 股宇宙知识库同款主题
   浅色 · 深蓝导航 + 金色强调 + 红涨绿跌
   ============================================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --brand: #1a2b4a;
    --brand-light: #2d4a7a;
    --accent: #d4a644;
    --up: #e74c3c;        /* 错：红 */
    --down: #2ecc71;      /* 对：绿 */
    --bg: #f5f6f8;
    --card: #ffffff;
    --text: #2c3e50;
    --text-light: #7f8c8d;
    --border: #e8eaed;
    --shadow: 0 2px 12px rgba(26, 43, 74, 0.08);
    --radius: 12px;
}

html { -webkit-text-size-adjust: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
                 "Microsoft YaHei", "Helvetica Neue", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}

/* ---------- 顶部导航（复刻 kb-header） ---------- */
.q-header {
    position: sticky; top: 0; z-index: 100;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%);
    color: #fff;
    box-shadow: 0 2px 10px rgba(26, 43, 74, 0.2);
}
.q-header-inner {
    max-width: 860px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 16px; height: 52px; gap: 12px;
}
.q-logo {
    display: flex; align-items: center; gap: 8px;
    font-size: 18px; font-weight: 700; color: #fff;
    text-decoration: none; letter-spacing: 1px;
}
.q-logo img { width: 30px; height: 30px; border-radius: 6px; }
.q-back-btn {
    background: rgba(255, 255, 255, 0.15);
    color: #fff; text-decoration: none;
    padding: 6px 14px; border-radius: 20px;
    font-size: 13px; transition: background 0.2s;
    white-space: nowrap;
}
.q-back-btn:hover { background: rgba(255, 255, 255, 0.28); }
.q-timer {
    font-family: "SF Mono", Menlo, monospace;
    font-size: 16px; font-weight: 600; color: #fff;
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 12px; border-radius: 16px;
    min-width: 72px; text-align: center;
}
.q-timer.urgent { background: var(--up); animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0.55; } }

/* ---------- 主区 ---------- */
.q-main {
    max-width: 860px;
    margin: 0 auto;
    padding: 16px 14px 60px;
    min-height: calc(100vh - 52px);
}

.q-empty, .q-empty-box { text-align: center; padding: 80px 20px; color: var(--text-light); }
.q-empty .icon, .q-empty-box .icon { font-size: 40px; margin-bottom: 12px; }

/* ---------- 首页宣传区（特效） ---------- */
.q-promo {
    position: relative;
    text-align: center;
    padding: 30px 16px 34px;
    margin-bottom: 20px;
    border-radius: 16px;
    background: linear-gradient(125deg, #16264a 0%, #2d4a7a 45%, #1a2b4a 100%);
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(26, 43, 74, 0.35);
}
/* 扫光特效 */
.q-promo::before {
    content: "";
    position: absolute; top: 0; left: -80%;
    width: 55%; height: 100%;
    background: linear-gradient(105deg, transparent, rgba(255,255,255,0.14), transparent);
    transform: skewX(-22deg);
    animation: shine 3.4s ease-in-out infinite;
}
@keyframes shine { 0% { left: -80%; } 55%, 100% { left: 130%; } }
/* 底部金色渐变光带 */
.q-promo::after {
    content: "";
    position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), #f3d98b, var(--accent), transparent);
    background-size: 200% 100%;
    animation: goldFlow 3s linear infinite;
}
@keyframes goldFlow { to { background-position: -200% 0; } }

/* 徽章弹入 */
.promo-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.pb {
    font-size: 12px; font-weight: 600; letter-spacing: 0.06em;
    color: #fff; padding: 5px 13px; border-radius: 14px;
    opacity: 0; animation: badgeIn .5s cubic-bezier(.2,.9,.3,1.4) forwards;
}
.pb:nth-child(1) { animation-delay: .1s; background: linear-gradient(135deg, #c0392b, #e74c3c); box-shadow: 0 3px 10px rgba(231,76,60,.4); }
.pb:nth-child(2) { animation-delay: .25s; background: linear-gradient(135deg, #8e6d1f, #d4a644); box-shadow: 0 3px 10px rgba(212,166,68,.4); }
.pb:nth-child(3) { animation-delay: .4s; background: linear-gradient(135deg, #14532d, #2ecc71); box-shadow: 0 3px 10px rgba(46,204,113,.4); }
@keyframes badgeIn { from { opacity: 0; transform: translateY(14px) scale(.8); } to { opacity: 1; transform: none; } }

/* 主标题：流动金色渐变字 */
.promo-title {
    font-size: clamp(30px, 6vw, 46px); font-weight: 900;
    color: #fff; letter-spacing: 3px; line-height: 1.25;
    text-shadow: 0 2px 14px rgba(0,0,0,.35);
    margin-bottom: 6px;
}
.pt-hot {
    margin-left: 8px;
    background: linear-gradient(90deg, #f3d98b, #d4a644, #ffe9b8, #d4a644, #f3d98b);
    background-size: 200% 100%;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: goldFlow 2.6s linear infinite;
}
.promo-sub {
    color: rgba(255,255,255,.72); font-size: 13px; letter-spacing: .12em;
    margin-bottom: 20px;
}

/* 数据条：白卡数字滚动 */
.promo-stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
    max-width: 520px; margin: 0 auto;
}
.ps {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.16);
    border-radius: 12px;
    padding: 12px 6px 10px;
    backdrop-filter: blur(4px);
    transition: transform .25s, background .25s;
}
.ps:hover { transform: translateY(-3px); background: rgba(255,255,255,0.14); }
.ps b {
    display: block;
    font-family: "SF Mono", Menlo, monospace;
    font-size: clamp(20px, 4.4vw, 27px); font-weight: 800;
    color: #f3d98b; line-height: 1.1;
    text-shadow: 0 0 18px rgba(243, 217, 139, 0.45);
}
.ps i { display: block; font-style: normal; font-size: 11px; color: rgba(255,255,255,.65); margin-top: 3px; letter-spacing: .1em; }
@media (max-width: 480px) { .promo-stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 首页 hero（旧，保留给降级） ---------- */
.q-hero {
    text-align: center;
    padding: 26px 0 34px;
}
.q-hero h1 {
    font-size: clamp(30px, 6vw, 44px); font-weight: 800; letter-spacing: 2px;
    color: var(--brand);
}
.q-hero h1 span { color: var(--accent); }
.q-hero p { color: var(--text-light); font-size: 13px; margin-top: 8px; letter-spacing: 0.05em; }

/* ---------- 醒目的知识点学习入口 ---------- */
.q-learn-strip {
    margin: 0 0 22px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%);
    border-radius: 14px;
    padding: 18px 20px;
    box-shadow: 0 4px 16px rgba(26, 43, 74, 0.25);
}
.qls-head {
    color: #fff; font-size: 17px; font-weight: 800; letter-spacing: 1px;
    margin-bottom: 14px;
}
.qls-head span {
    font-size: 12px; font-weight: 400; color: rgba(255, 255, 255, 0.75);
    letter-spacing: 0.05em;
}
.qls-cards { display: grid; grid-template-columns: 1fr; gap: 10px; }
@media (min-width: 680px) { .qls-cards { grid-template-columns: 1fr 1fr; } }
.qls-card {
    position: relative;
    display: block;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 10px;
    padding: 14px 16px 12px;
    text-decoration: none;
    transition: background .2s, transform .2s, border-color .2s;
}
.qls-card:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: var(--accent);
    transform: translateY(-2px);
}
.qls-title { color: #fff; font-size: 15px; font-weight: 700; }
.qls-meta { color: rgba(255, 255, 255, 0.85); font-size: 12.5px; margin-top: 4px; }
.qls-meta b { color: var(--accent); font-family: "SF Mono", Menlo, monospace; font-size: 14px; }
.qls-go {
    display: inline-block; margin-top: 8px;
    color: var(--accent); font-size: 12px; font-weight: 600; letter-spacing: 0.05em;
}

/* ---------- 历年真题 + 重点速记 快捷入口 ---------- */
.q-quick-strip {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
    margin: 0 0 22px;
}
/* 四张快捷卡：桌面 2×2（四列太挤致卡片变形），窄屏单列 */
@media (max-width: 900px) {
    .q-quick-strip { grid-template-columns: 1fr; }
}
.qq-card {
    position: relative; overflow: hidden;
    display: flex; align-items: center; gap: 13px;
    border-radius: 14px; padding: 18px 18px; text-decoration: none;
    transition: transform .2s, box-shadow .2s;
    box-shadow: 0 4px 14px rgba(26, 43, 74, 0.18);
}
.qq-card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(26, 43, 74, 0.3); }
/* 悬停扫光 */
.qq-card::after {
    content: ""; position: absolute; top: 0; left: -80%; width: 45%; height: 100%;
    background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .22), transparent);
    transform: skewX(-18deg); transition: left .5s ease;
}
.qq-card:hover::after { left: 130%; }
.qq-paper { background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%); }
.qq-memo { background: linear-gradient(135deg, #c9922e 0%, var(--accent) 100%); }
.qq-multi { background: linear-gradient(135deg, #4a3a9e 0%, #7b61ff 100%); }
.qq-ico {
    flex-shrink: 0; width: 46px; height: 46px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; line-height: 1; background: rgba(255, 255, 255, 0.18);
}
.qq-txt { flex: 1; min-width: 0; }
.qq-txt b { display: block; color: #fff; font-size: 16.5px; letter-spacing: .5px; }
.qq-txt i { display: block; font-style: normal; color: rgba(255, 255, 255, 0.85); font-size: 12px; margin-top: 3px; }
.qq-txt em { font-style: normal; font-weight: 800; font-size: 14px; color: #ffe9b8; padding: 0 1px; }
.qq-paper .qq-txt em { color: #ffd873; }
.qq-go {
    flex-shrink: 0; font-size: 12px; font-weight: 800; white-space: nowrap;
    color: #fff; background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 14px; padding: 5px 12px;
}
@media (max-width: 560px) {
    .q-quick-strip { grid-template-columns: 1fr; }
    .qq-card { padding: 15px 16px; }
}

/* ---------- 内联知识点（答题后直接展示） ---------- */
.q-knowledge-inline {
    margin-top: 12px;
    border: 1px dashed rgba(45, 74, 122, 0.35);
    border-radius: 10px;
    background: #f4f7fb;
    padding: 12px 15px;
}
.qki-head {
    font-size: 11.5px; color: var(--brand); font-weight: 700;
    letter-spacing: 0.06em; margin-bottom: 7px;
    padding-bottom: 6px; border-bottom: 1px solid var(--border);
}
.qki-body {
    font-size: 13px; line-height: 1.85; color: var(--text);
    text-align: justify;
    max-height: 220px; overflow-y: auto;
}
.qki-more {
    display: inline-block; margin-top: 8px;
    font-size: 12px; color: var(--brand-light); text-decoration: none;
}
.qki-more:hover { color: var(--accent); }

/* ---------- 今日复习横幅 ---------- */
.q-review-banner {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    background: linear-gradient(135deg, #8a5a12 0%, #c98f2e 100%);
    color: #fff; text-decoration: none;
    border-radius: 10px; padding: 10px 16px;
    margin-bottom: 10px; font-size: 13.5px; font-weight: 600;
    transition: transform .2s, box-shadow .2s;
}
.q-review-banner:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(201, 143, 46, 0.35); }
.q-review-banner b {
    font-family: "SF Mono", Menlo, monospace; font-size: 16px;
    background: rgba(255,255,255,0.22); padding: 1px 8px; border-radius: 10px;
}
.q-review-banner span { font-size: 11.5px; font-weight: 400; opacity: 0.85; margin-left: auto; }

/* ---------- 薄弱雷达 ---------- */
.q-radar {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 8px 16px;
}
.qr-row {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 4px; border-bottom: 1px solid var(--border);
}
.qr-row:last-child { border-bottom: none; }
.qr-info { width: 170px; flex-shrink: 0; }
.qr-info b { display: block; font-size: 13.5px; color: var(--brand); }
.qr-info span { font-size: 11px; color: var(--text-light); }
.qr-bar {
    flex: 1; height: 8px; border-radius: 4px;
    background: var(--border); overflow: hidden;
}
.qr-bar i { display: block; height: 100%; border-radius: 4px; transition: width .4s; }
.qr-row.good .qr-bar i { background: var(--down); }
.qr-row.mid  .qr-bar i { background: var(--accent); }
.qr-row.bad  .qr-bar i { background: var(--up); }
.qr-row.na   .qr-bar i { background: var(--border); }
.qr-acc {
    width: 44px; text-align: right; flex-shrink: 0;
    font-family: "SF Mono", Menlo, monospace; font-size: 14px; font-weight: 700;
}
.qr-row.good .qr-acc { color: var(--down); }
.qr-row.mid  .qr-acc { color: var(--accent); }
.qr-row.bad  .qr-acc { color: var(--up); }
.qr-row.na   .qr-acc { color: var(--text-light); font-weight: 400; font-size: 12px; }

/* ---------- 知识点直达链接 ---------- */
.q-knowledge-link {
    display: inline-block; margin-top: 12px;
    font-size: 12.5px; color: var(--brand-light); text-decoration: none;
    padding: 6px 12px; border: 1px dashed rgba(45, 74, 122, 0.45);
    border-radius: 16px; transition: all .2s;
}
.q-knowledge-link:hover {
    color: var(--accent); border-color: var(--accent); border-style: solid;
    background: #fdf9ef;
}

/* ---------- 科目分栏 tab（重点速记） ---------- */
.q-sub-tabs {
    display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
    margin-bottom: 12px;
}
.q-sub-tab {
    font-family: inherit; font-size: 13.5px; font-weight: 600;
    color: var(--text-light); background: var(--card);
    border: 1px solid var(--border); border-radius: 10px;
    padding: 10px 8px; cursor: pointer;
    transition: all .2s;
}
.q-sub-tab:hover { border-color: var(--accent); color: var(--brand); }
.q-sub-tab.on {
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%);
    border-color: var(--brand); color: #fff;
    box-shadow: 0 3px 10px rgba(26, 43, 74, 0.25);
}

/* ---------- 重点速记卡片墙 ---------- */
.q-memo-filters { display: flex; gap: 10px; margin-bottom: 14px; }
.q-memo-filters select {
    font-family: inherit; font-size: 13px;
    color: var(--text); background: var(--card);
    border: 1px solid var(--border); border-radius: 18px;
    padding: 6px 14px; cursor: pointer; outline: none;
}
.q-memo-filters select:focus { border-color: var(--accent); }
.q-memo-grid {
    display: grid; grid-template-columns: 1fr; gap: 10px;
}
@media (min-width: 680px) { .q-memo-grid { grid-template-columns: 1fr 1fr; } }
.q-memo-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: 10px; box-shadow: var(--shadow);
    padding: 13px 15px;
}
.q-memo-card.cat-bai { border-left: 3px solid var(--brand); }
.q-memo-card.cat-kou { border-left: 3px solid var(--accent); }
.q-memo-card.cat-num { border-left: 3px solid var(--up); }
.qm-tag { font-size: 10.5px; color: var(--text-light); letter-spacing: 0.08em; margin-bottom: 6px; }
.qm-title { font-size: 14px; font-weight: 700; color: var(--brand); margin-bottom: 5px; line-height: 1.5; }
.qm-body { font-size: 13px; line-height: 1.8; color: var(--text); text-align: justify; }

/* ---------- 重点高亮（速记卡片） ---------- */
.hl-num {
    color: var(--up);
    font-weight: 700;
    font-family: "SF Mono", Menlo, monospace;
    font-size: 0.95em;
    background: rgba(231, 76, 60, 0.07);
    border-radius: 3px;
    padding: 0 2px;
}
.hl-term {
    color: var(--brand);
    font-weight: 700;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 1px;
}
.hl-kj {
    font-weight: 800;
    background: linear-gradient(transparent 62%, rgba(212, 166, 68, 0.38) 62%);
    padding: 0 1px;
}
.q-hl-legend {
    font-size: 11.5px; color: var(--text-light);
    margin: -6px 0 12px; letter-spacing: 0.03em;
}

.q-note {
    font-size: 12px; color: var(--text-light); line-height: 1.7;
    padding: 12px 14px; background: #fdf9ef;
    border: 1px solid rgba(212, 166, 68, 0.3); border-radius: 8px;
    margin-top: 16px;
}

/* ---------- 科目卡片 ---------- */
.q-subjects { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 680px) { .q-subjects { grid-template-columns: 1fr 1fr; } }

.q-subject-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px 22px;
    cursor: pointer;
    transition: transform .25s, box-shadow .25s, border-color .25s;
}
.q-subject-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(26, 43, 74, 0.15);
    border-color: var(--accent);
}
.qsc-head {
    display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
    padding-bottom: 12px; margin-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.qsc-head h2 { font-size: 17px; font-weight: 700; color: var(--brand); }
.qsc-count { font-size: 12px; color: var(--text-light); white-space: nowrap; }
.qsc-stats { display: flex; gap: 26px; margin-bottom: 12px; }
.qsc-stat b {
    font-size: 22px; font-weight: 800; color: var(--brand);
    font-family: "SF Mono", Menlo, monospace;
}
.qsc-stat i { display: block; font-style: normal; font-size: 11px; color: var(--text-light); letter-spacing: 0.1em; }
.qsc-bar { height: 4px; border-radius: 2px; background: var(--border); overflow: hidden; margin-bottom: 18px; }
.qsc-bar i { display: block; height: 100%; background: var(--accent); transition: width .4s; }
.qsc-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.qsc-actions a {
    font-size: 12px; text-decoration: none; color: var(--brand);
    padding: 6px 13px; border: 1px solid var(--border); border-radius: 16px;
    background: var(--bg);
    transition: all .2s;
}
.qsc-actions a:hover { color: var(--accent); border-color: var(--accent); }
.qsc-actions a.primary {
    color: #fff; background: var(--brand); border-color: var(--brand); font-weight: 600;
}
.qsc-actions a.primary:hover { background: var(--brand-light); color: #fff; }

/* ---------- 考试记录 ---------- */
.q-history {
    margin-top: 34px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px 20px;
}
.q-history h3 { font-size: 14px; margin-bottom: 10px; color: var(--brand); letter-spacing: 0.08em; }
.qh-row {
    display: flex; align-items: center; gap: 16px;
    padding: 10px 4px; border-top: 1px solid var(--border); font-size: 13px;
}
.qh-sub { width: 64px; color: var(--text); font-weight: 600; }
.qh-date { color: var(--text-light); }
.qh-detail { flex: 1; color: var(--text-light); }
.qh-score { font-family: "SF Mono", Menlo, monospace; font-size: 16px; font-weight: 700; }
.qh-row.pass .qh-score, .qh-row.pass i { color: var(--down); }
.qh-row.fail .qh-score, .qh-row.fail i { color: var(--up); }
.qh-row i { font-style: normal; font-size: 12px; }

/* ---------- 刷题顶栏 ---------- */
.q-topbar { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.q-meta { flex: 1; font-size: 12px; color: var(--text-light); letter-spacing: 0.05em; text-align: center; }
.q-progress-text { font-family: "SF Mono", Menlo, monospace; font-size: 13px; color: var(--brand); font-weight: 600; }
.q-progress { height: 3px; background: var(--border); border-radius: 2px; margin-bottom: 22px; overflow: hidden; }
.q-progress i { display: block; height: 100%; background: var(--accent); transition: width .3s; }

/* ---------- 题卡 ---------- */
.q-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 26px 24px;
    margin-bottom: 18px;
    animation: cardIn .3s cubic-bezier(.2, .7, .2, 1);
}
@keyframes cardIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.q-card.review { margin-bottom: 12px; }

.q-stem { font-size: 16px; line-height: 1.9; margin-bottom: 18px; font-weight: 600; }
.q-stem b { color: var(--accent); font-family: "SF Mono", Menlo, monospace; margin-right: 6px; }

/* ---------- 选项 ---------- */
.q-options { display: grid; gap: 10px; }
.q-opt {
    display: flex; align-items: flex-start; gap: 12px;
    text-align: left; width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    color: var(--text);
    font-size: 14px; line-height: 1.7;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .2s, background .2s;
}
.q-opt:hover:not(:disabled) { border-color: var(--accent); background: #fdf9ef; }
.q-opt i {
    font-style: normal; font-family: "SF Mono", Menlo, monospace;
    width: 22px; height: 22px; flex-shrink: 0;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); border-radius: 50%;
    background: var(--card);
    font-size: 12px; color: var(--text-light);
    margin-top: 2px;
    transition: all .2s;
}
.q-opt.picked { border-color: var(--brand-light); background: #eef3fa; }
.q-opt.picked i { border-color: var(--brand-light); background: var(--brand-light); color: #fff; }
.q-opt.correct { border-color: var(--down); background: #eefaf3; }
.q-opt.correct i { border-color: var(--down); background: var(--down); color: #fff; }
.q-opt.wrong { border-color: var(--up); background: #fdeeec; }
.q-opt.wrong i { border-color: var(--up); background: var(--up); color: #fff; }
.q-opt:disabled { cursor: default; }

/* ---------- 多选题 ---------- */
.q-multitag {
    display: inline-block; vertical-align: 2px; margin-left: 4px;
    font-size: 11px; font-weight: 700; letter-spacing: .5px;
    color: #7b61ff; background: rgba(123, 97, 255, .1);
    border-radius: 8px; padding: 1px 8px;
}
.q-multi-ok { margin-top: 14px; width: 100%; }
.q-multi-ok:disabled { opacity: .55; }

/* ---------- 题目纠错入口（每道题页面） ---------- */
.q-fixrow { margin-top: 14px; }
.q-fixlink {
    width: 100%; padding: 9px 12px; font-size: 13px; font-weight: 700;
    color: #b3541e; background: #fdf3ea; border: 1px dashed #e2a06b;
    border-radius: 10px; cursor: pointer; transition: background .15s, border-color .15s;
}
.q-fixlink:hover { background: #fbe9da; border-color: #c97b3d; }
/* 纠错弹窗（复用反馈弹窗 qfb-* 骨架，以下为题目信息/输入区样式） */
.qfix-info {
    background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
    padding: 10px 12px; font-size: 12px; color: var(--text-light);
    margin-bottom: 12px; line-height: 1.7;
}
.qfix-info b { color: var(--brand); }
.qfix-info p { margin: 4px 0; color: var(--text); font-size: 12.5px; }
.qfix-info i { font-style: normal; }
.qfix-info i b { color: var(--up); font-family: Menlo, monospace; }
.qfix-input {
    width: 100%; font-family: inherit; font-size: 14px;
    padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
    color: var(--text); background: #fff; margin-bottom: 10px; box-sizing: border-box;
}
.qfix-input:focus { outline: none; border-color: var(--brand-light); }
.qfix-tip { font-size: 11.5px; color: var(--text-light); margin-top: 10px; line-height: 1.6; }

/* ---------- 反馈 / 解析 ---------- */
.q-feedback {
    margin-top: 16px; padding: 10px 16px; border-radius: 8px;
    font-size: 13px; letter-spacing: 0.03em; font-weight: 600;
}
.q-feedback.ok { color: var(--down); background: #eefaf3; border: 1px solid rgba(46, 204, 113, 0.3); }
.q-feedback.no { color: var(--up); background: #fdeeec; border: 1px solid rgba(231, 76, 60, 0.3); }
.q-explain {
    margin-top: 12px; padding: 13px 16px;
    border-left: 3px solid var(--accent);
    background: #fdf9ef;
    border-radius: 0 8px 8px 0;
    font-size: 13px; color: var(--text); line-height: 1.8;
}
.q-explain b {
    display: block; color: var(--accent); font-size: 11px;
    letter-spacing: 0.15em; margin-bottom: 4px;
}

/* ---------- 按钮 ---------- */
.q-nav { display: flex; gap: 12px; align-items: center; }
.q-nav-jump { flex: 1; }
.btn {
    font-family: inherit; font-size: 14px;
    color: var(--text); background: var(--card);
    border: 1px solid var(--border); border-radius: 20px;
    padding: 9px 22px; cursor: pointer; text-decoration: none;
    box-shadow: var(--shadow);
    transition: all .2s;
}
.btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn.primary {
    background: var(--brand); border-color: var(--brand);
    color: #fff; font-weight: 600;
}
.btn.primary:hover:not(:disabled) { background: var(--brand-light); color: #fff; }
.btn.ghost { background: transparent; box-shadow: none; font-size: 13px; padding: 6px 14px; border-radius: 16px; }

/* ---------- 答题卡（考试模式） ---------- */
.q-sheet {
    display: flex; flex-wrap: wrap; gap: 6px;
    margin-bottom: 18px; padding: 14px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
}
.sh-cell {
    width: 30px; height: 30px;
    font-family: "SF Mono", Menlo, monospace; font-size: 12px;
    color: var(--text-light); background: var(--bg);
    border: 1px solid var(--border); border-radius: 6px;
    cursor: pointer; transition: all .15s;
}
.sh-cell:hover { border-color: var(--accent); }
.sh-cell.done { color: var(--accent); border-color: var(--accent); background: #fdf9ef; }
.sh-cell.on { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 700; }

/* ---------- 成绩单 ---------- */
.q-result { text-align: center; padding: 50px 0 26px; }
.qr-ring {
    width: 150px; height: 150px; margin: 0 auto 22px;
    border-radius: 50%;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    border: 3px solid var(--border);
    position: relative;
    background: var(--card);
}
.qr-ring::after {
    content: ""; position: absolute; inset: -3px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: currentColor; border-right-color: currentColor;
    transform: rotate(-30deg);
}
.q-result.pass .qr-ring { color: var(--down); border-color: rgba(46, 204, 113, 0.35); }
.q-result.fail .qr-ring { color: var(--up); border-color: rgba(231, 76, 60, 0.35); }
.qr-ring b { font-size: 44px; font-weight: 800; font-family: "SF Mono", Menlo, monospace; line-height: 1; }
.qr-ring i { font-style: normal; font-size: 12px; color: var(--text-light); margin-top: 4px; }
.q-result h2 { font-size: 22px; margin-bottom: 6px; color: var(--brand); }
.q-result p { color: var(--text-light); font-size: 14px; }
.qr-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.q-review-title {
    margin: 40px 0 14px; font-size: 15px; color: var(--brand);
    letter-spacing: 0.1em; font-weight: 700;
    border-top: 1px solid var(--border); padding-top: 26px;
}

/* ---------- 空状态 ---------- */
.q-empty-box h3 { margin: 12px 0 6px; font-size: 18px; color: var(--brand); }
.q-empty-box p { color: var(--text-light); font-size: 13px; margin-bottom: 20px; }
.q-empty-box .btn { display: inline-block; }

/* ---------- 知识点学习 ---------- */
.q-learn-cat { margin-bottom: 26px; }
.q-learn-cat h3 {
    font-size: 14px; color: var(--brand); letter-spacing: 0.1em;
    margin-bottom: 10px; padding-left: 10px;
    border-left: 3px solid var(--accent);
}
.q-doc-card {
    display: flex; align-items: center; gap: 12px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: 10px; box-shadow: var(--shadow);
    padding: 13px 16px; margin-bottom: 8px;
    text-decoration: none; color: var(--text);
    transition: border-color .2s, transform .2s;
}
.q-doc-card:hover { border-color: var(--accent); transform: translateX(3px); }
.qd-main { flex: 1; min-width: 0; }
.qd-title { font-size: 15px; font-weight: 600; }
.qd-meta { font-size: 12px; color: var(--text-light); margin-top: 2px; }
.qd-arrow { color: var(--accent); font-size: 16px; }

/* 阅读页 */
.q-reader {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 30px 28px;
    margin-bottom: 18px;
}
.q-reader h1 {
    font-size: 22px; color: var(--brand); font-weight: 800;
    text-align: center; margin-bottom: 6px;
}
.q-toc { text-align: center; margin-bottom: 18px; }
.q-toc select {
    font-family: inherit; font-size: 13px;
    color: var(--text); background: var(--bg);
    border: 1px solid var(--border); border-radius: 18px;
    padding: 6px 14px; max-width: 100%;
    cursor: pointer; outline: none;
}
.q-toc select:focus { border-color: var(--accent); }
.q-sec { margin-bottom: 22px; }
.q-sec h3 {
    font-size: 15px; font-weight: 700; color: var(--brand);
    padding: 6px 0 6px 12px; margin-bottom: 8px;
    border-left: 3px solid var(--accent);
    background: linear-gradient(90deg, rgba(212, 166, 68, 0.08), transparent);
    border-radius: 0 6px 6px 0;
}
.q-sec p {
    font-size: 14px; line-height: 1.9; color: var(--text);
    margin-bottom: 8px; text-align: justify;
}
.q-more { text-align: center; padding: 16px 0 4px; }

/* ---------- 页脚署名 ---------- */
.q-footer {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 14px 36px;
    text-align: center;
}
.q-author { font-size: 13px; color: var(--brand); }
.q-author a { color: inherit; text-decoration: none; font-weight: 600; }
.q-author a:hover { color: var(--accent); }
.q-disclaimer { font-size: 11px; color: var(--text-light); margin-top: 4px; line-height: 1.6; }

/* ---------- 响应式 ---------- */
@media (max-width: 560px) {
    .q-logo span { display: none; }
    .q-main { padding: 12px 12px 50px; }
    .q-card { padding: 20px 16px; }
    .qsc-stats { gap: 18px; }
    .qh-sub { width: 56px; }
}

/* ---------- 无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
    .q-timer.urgent { animation: none; }
    .q-card { animation: none; }
    .q-promo::before, .q-promo::after, .pt-hot { animation: none; }
    .pb { animation: none; opacity: 1; }
}

/* ============================================================
   吸顶工具栏（知识点阅读 / 练习 / 考试：返回+章节筛选/进度固定）
   ============================================================ */
.q-sticky-bar {
    position: sticky; top: 56px; z-index: 90;
    background: var(--bg);
    display: flex; align-items: center; gap: 10px;
    padding: 10px 0; margin-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.qtoc-sel {
    flex: 1; min-width: 0;
    font-family: inherit; font-size: 13px; color: var(--text);
    background: var(--card); border: 1px solid var(--border);
    border-radius: 10px; padding: 8px 10px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.qtoc-sel:focus { outline: none; border-color: var(--accent); }
@media (max-width: 560px) {
    .q-sticky-bar { top: 52px; gap: 8px; }
    .q-sticky-bar .btn { padding: 7px 10px; font-size: 12px; }
}

/* ---------- 9月押题 ---------- */
.qq-pred { background: linear-gradient(135deg, #8a2e4e 0%, #d9556e 100%); }
.pd-note {
    font-size: 12.5px; color: var(--text-light); line-height: 1.8;
    background: var(--bg); border: 1px dashed var(--border);
    border-radius: 10px; padding: 10px 14px; margin-bottom: 6px;
}
.pd-set .pd-progress {
    height: 4px; background: var(--border); border-radius: 2px;
    overflow: hidden; margin: 8px 0 4px;
}
.pd-set .pd-progress i { display: block; height: 100%; background: var(--accent); }
.pd-set .pd-meta2 { font-size: 11px; color: var(--text-light); }
/* 案例题资料/题干换行保留 */
.q-stem { white-space: pre-wrap; }

/* ---------- 提分密训（第5张通栏卡） ---------- */
.qq-mid { background: linear-gradient(135deg, #14532d 0%, #2f9e5a 100%); }
.qq-wide { grid-column: 1 / -1; }