/* ============================================================
   tem_question 月度挑战赛样式（海南美食答题王）
   主题色：金色 + 橙色
   响应式：宽度对齐首页 .container（1170px），桌面多列，移动单列
   ============================================================ */
.qn-challenge-banner,.qn-challenge-highlights,.qn-challenge-steps,
.qn-challenge-rules,.qn-challenge-leaderboard,.qn-challenge-prizes,
.qn-challenge-faq,.qn-challenge-cta,.qn-challenge-checkin-entry{
    margin:20px auto;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}

/* ========== Banner ========== */
.qn-challenge-banner{
    position:relative;border-radius:20px;overflow:hidden;
    box-shadow:0 16px 40px rgba(0,0,0,0.18);color:#fff;
}
.qn-challenge-banner .banner-bg{
    position:absolute;inset:0;
    background:linear-gradient(135deg,#ff9a56 0%,#ff6b35 40%,#ee0979 100%);
    z-index:0;
}
.qn-challenge-banner .banner-bg::before{
    content:"";position:absolute;top:-30%;right:-10%;
    width:340px;height:340px;background:rgba(255,255,255,0.12);border-radius:50%;
}
.qn-challenge-banner .banner-bg::after{
    content:"";position:absolute;bottom:-20%;left:-10%;
    width:240px;height:240px;background:rgba(255,255,255,0.08);border-radius:50%;
}
.qn-challenge-banner .banner-content{position:relative;z-index:1;padding:40px 32px;text-align:center;}
.qn-challenge-banner .banner-icon{font-size:52px;margin-bottom:12px;}
.qn-challenge-banner .banner-title{font-size:30px;font-weight:700;margin:0 0 8px;text-shadow:0 2px 10px rgba(0,0,0,0.2);}
.qn-challenge-banner .banner-subtitle{font-size:17px;opacity:0.95;margin-bottom:24px;}
.qn-challenge-banner .banner-stats{display:flex;justify-content:center;gap:48px;margin-bottom:18px;}
.qn-challenge-banner .bs-item{display:flex;flex-direction:column;align-items:center;}
.qn-challenge-banner .bs-num{font-size:26px;font-weight:700;}
.qn-challenge-banner .bs-label{font-size:13px;opacity:0.85;margin-top:4px;}
.qn-challenge-banner .banner-period{font-size:14px;opacity:0.85;margin-bottom:24px;}
.qn-challenge-banner .banner-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
.qn-challenge-banner .btn-join{
    padding:14px 36px;border:none;border-radius:24px;cursor:pointer;
    background:#fff;color:#ff6b35;font-size:16px;font-weight:700;
    box-shadow:0 6px 16px rgba(0,0,0,0.15);transition:all 0.2s ease;
}
.qn-challenge-banner .btn-join:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,0.2);}
.qn-challenge-banner .btn-join:disabled{background:#f0f0f0;color:#999;cursor:default;}
.qn-challenge-banner .btn-join.joined{background:#fff;color:#4caf50;}
.qn-challenge-banner .btn-secondary{
    padding:14px 28px;border:2px solid rgba(255,255,255,0.5);border-radius:24px;
    background:transparent;color:#fff;font-size:15px;text-decoration:none;
    display:inline-flex;align-items:center;transition:all 0.2s ease;
}
.qn-challenge-banner .btn-secondary:hover{background:rgba(255,255,255,0.15);}

/* ========== 三大亮点（桌面 3 列横排） ========== */
.qn-challenge-highlights{display:flex;gap:16px;}
.qn-challenge-highlights .hl-card{
    flex:1;background:#fff;border-radius:16px;padding:22px 14px;text-align:center;
    box-shadow:0 6px 20px rgba(0,0,0,0.08);transition:all 0.25s ease;
}
.qn-challenge-highlights .hl-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(0,0,0,0.12);}
.qn-challenge-highlights .hl-icon{font-size:32px;margin-bottom:10px;}
.qn-challenge-highlights .hl-title{font-size:13px;color:#999;margin-bottom:6px;}
.qn-challenge-highlights .hl-value{font-size:16px;font-weight:700;color:#ff6b35;}

/* ========== 参赛步骤 ========== */
.qn-challenge-steps{background:#fff;border-radius:16px;padding:24px 28px;box-shadow:0 6px 20px rgba(0,0,0,0.08);}
.qn-challenge-steps .steps-title{font-size:17px;font-weight:700;margin-bottom:20px;text-align:center;}
.qn-challenge-steps .steps-row{display:flex;align-items:center;justify-content:center;gap:20px;}
.qn-challenge-steps .step-item{text-align:center;flex:1;max-width:260px;}
.qn-challenge-steps .step-num{
    width:48px;height:48px;border-radius:50%;margin:0 auto 10px;
    background:linear-gradient(135deg,#ff9a56,#ff6b35);color:#fff;
    display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;
    box-shadow:0 4px 12px rgba(255,107,53,0.3);
}
.qn-challenge-steps .step-text{font-size:14px;color:#333;}
.qn-challenge-steps .step-text small{color:#999;font-size:12px;}
.qn-challenge-steps .step-arrow{color:#ccc;font-size:22px;}

/* ========== 积分规则 ========== */
.qn-challenge-rules{background:#fff;border-radius:16px;padding:24px 28px;box-shadow:0 6px 20px rgba(0,0,0,0.08);}
.qn-challenge-rules .rules-title{font-size:17px;font-weight:700;margin-bottom:18px;color:#333;}
.qn-challenge-rules .rules-table{width:100%;border-collapse:collapse;}
.qn-challenge-rules .rules-table th{
    background:linear-gradient(135deg,#ff9a56,#ff6b35);color:#fff;
    padding:12px;font-size:14px;text-align:center;border-radius:8px 8px 0 0;
}
.qn-challenge-rules .rules-table th:first-child{text-align:left;border-radius:8px 0 0 0;}
.qn-challenge-rules .rules-table th:last-child{border-radius:0 8px 0 0;}
.qn-challenge-rules .rules-table td{
    padding:12px;font-size:14px;text-align:center;
    border-bottom:1px solid #f0f0f0;color:#333;
}
.qn-challenge-rules .rules-table td:first-child{text-align:left;}
.qn-challenge-rules .rules-table .rule-base{color:#999;}
.qn-challenge-rules .rules-table .rule-double{color:#ff6b35;font-weight:700;}
.qn-challenge-rules .rules-table tr:last-child td{border-bottom:none;}
.qn-challenge-rules .rules-table tr:hover td{background:#fff8f5;}
.qn-challenge-rules .rules-tip{
    margin-top:18px;padding:14px 18px;background:#fff8f5;border-radius:12px;
    font-size:13px;color:#8b4513;line-height:1.7;
}

/* ========== 排行榜 ========== */
.qn-challenge-leaderboard{background:#fff;border-radius:16px;padding:24px 28px;box-shadow:0 6px 20px rgba(0,0,0,0.08);}
.qn-challenge-leaderboard .lb-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;}
.qn-challenge-leaderboard .lb-title{font-size:17px;font-weight:700;}
.qn-challenge-leaderboard .lb-refresh{
    padding:8px 16px;border:1px solid #ff6b35;border-radius:16px;
    background:#fff;color:#ff6b35;font-size:13px;cursor:pointer;transition:all 0.2s;
}
.qn-challenge-leaderboard .lb-refresh:hover{background:#ff6b35;color:#fff;}
.qn-challenge-leaderboard .lb-myrow{
    display:flex;align-items:center;gap:12px;flex-wrap:wrap;
    padding:14px 18px;background:linear-gradient(135deg,#fff4ef,#ffe6d9);
    border-radius:12px;margin-bottom:18px;font-size:14px;
}
.qn-challenge-leaderboard .lb-myrow .my-label{color:#8b4513;}
.qn-challenge-leaderboard .lb-myrow .my-rank{color:#ff6b35;font-weight:700;font-size:16px;}
.qn-challenge-leaderboard .lb-myrow .my-score{color:#666;}
.qn-challenge-leaderboard .lb-myrow .my-score strong{color:#ff6b35;}
.qn-challenge-leaderboard .lb-list{display:flex;flex-direction:column;gap:10px;}
.qn-challenge-leaderboard .rank-row{
    display:flex;align-items:center;gap:14px;padding:14px 16px;
    background:#f8f9fb;border-radius:12px;transition:all 0.2s;
}
.qn-challenge-leaderboard .rank-row:hover{background:#f0f2f5;}
.qn-challenge-leaderboard .rank-row.rank-me{
    background:linear-gradient(135deg,#fff8e1,#ffe0b2);
    border:2px solid #ff6b35;
}
.qn-challenge-leaderboard .rank-pos{
    width:44px;text-align:center;font-size:22px;font-weight:700;color:#999;
}
.qn-challenge-leaderboard .rank-pos .rank-num{font-size:17px;}
.qn-challenge-leaderboard .rank-avatar{
    width:40px;height:40px;border-radius:50%;
    background:linear-gradient(135deg,#ff9a56,#ff6b35);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:17px;font-weight:600;flex-shrink:0;
}
.qn-challenge-leaderboard .rank-info{flex:1;min-width:0;}
.qn-challenge-leaderboard .rank-name{font-size:15px;color:#333;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.qn-challenge-leaderboard .rank-tag-me{
    display:inline-block;background:#ff6b35;color:#fff;font-size:11px;
    padding:2px 7px;border-radius:8px;margin-left:6px;
}
.qn-challenge-leaderboard .rank-level{font-size:12px;color:#999;margin-top:3px;}
.qn-challenge-leaderboard .rank-score{font-size:20px;font-weight:700;color:#ff6b35;flex-shrink:0;}
.qn-challenge-leaderboard .rank-score .unit{font-size:12px;font-weight:400;color:#999;margin-left:2px;}
.qn-challenge-leaderboard .rank-empty{text-align:center;padding:36px;color:#999;font-size:15px;}
.qn-challenge-leaderboard .lb-tip{
    margin-top:18px;padding:12px 18px;background:#f0f7ff;border-radius:10px;
    font-size:13px;color:#1976d2;line-height:1.6;
}

/* ========== 奖品展示（桌面 4 列 / 平板 2 列 / 手机 1 列） ========== */
.qn-challenge-prizes{background:#fff;border-radius:16px;padding:24px 28px;box-shadow:0 6px 20px rgba(0,0,0,0.08);}
.qn-challenge-prizes .prizes-title{font-size:17px;font-weight:700;text-align:center;margin-bottom:6px;}
.qn-challenge-prizes .prizes-total{font-size:14px;color:#ff6b35;text-align:center;margin-bottom:22px;}
.qn-challenge-prizes .prizes-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.qn-challenge-prizes .prize-card{
    background:linear-gradient(135deg,#fff8e1,#ffe0b2);border-radius:16px;
    padding:20px 14px;text-align:center;border:1px solid rgba(255,107,53,0.2);
    transition:all 0.25s ease;
}
.qn-challenge-prizes .prize-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(255,107,53,0.15);}
.qn-challenge-prizes .prize-card:nth-child(1){grid-column:1/-1;background:linear-gradient(135deg,#ffecd2,#fcb69f);}
.qn-challenge-prizes .prize-icon{font-size:36px;margin-bottom:8px;}
.qn-challenge-prizes .prize-rank{font-size:14px;color:#8b4513;font-weight:600;margin-bottom:6px;}
.qn-challenge-prizes .prize-name{font-size:15px;color:#333;font-weight:700;margin-bottom:6px;line-height:1.4;}
.qn-challenge-prizes .prize-value{font-size:13px;color:#ff6b35;font-weight:600;}

/* ========== FAQ ========== */
.qn-challenge-faq{background:#fff;border-radius:16px;padding:24px 28px;box-shadow:0 6px 20px rgba(0,0,0,0.08);}
.qn-challenge-faq .faq-title{font-size:17px;font-weight:700;margin-bottom:18px;}
.qn-challenge-faq .faq-item{padding:14px 0;border-bottom:1px dashed #f0f0f0;}
.qn-challenge-faq .faq-item:last-child{border-bottom:none;}
.qn-challenge-faq .faq-q{font-size:15px;font-weight:600;color:#333;margin-bottom:8px;}
.qn-challenge-faq .faq-a{font-size:14px;color:#666;line-height:1.7;}

/* ========== 底部 CTA ========== */
.qn-challenge-cta{
    background:linear-gradient(135deg,#ff9a56 0%,#ff6b35 50%,#ee0979 100%);
    border-radius:20px;padding:36px 28px;text-align:center;color:#fff;
    box-shadow:0 15px 40px rgba(255,107,53,0.3);
}
.qn-challenge-cta .cta-title{font-size:20px;font-weight:700;margin-bottom:20px;}
.qn-challenge-cta .cta-btn{
    padding:16px 44px;border:none;border-radius:24px;cursor:pointer;
    background:#fff;color:#ff6b35;font-size:17px;font-weight:700;
    box-shadow:0 6px 16px rgba(0,0,0,0.15);transition:all 0.2s;
}
.qn-challenge-cta .cta-btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,0.2);}
.qn-challenge-cta .cta-sub{font-size:14px;opacity:0.9;margin-top:18px;}
.qn-challenge-cta .cta-sub strong{font-weight:700;}

/* ========== 签到入口 ========== */
.qn-challenge-checkin-entry{
    display:flex;align-items:center;gap:14px;
    background:linear-gradient(135deg,#667eea,#764ba2);border-radius:16px;
    padding:18px 24px;color:#fff;cursor:pointer;transition:all 0.2s;
    box-shadow:0 8px 24px rgba(102,126,234,0.3);
}
.qn-challenge-checkin-entry:hover{transform:translateY(-2px);}
.qn-challenge-checkin-entry .ce-icon{font-size:26px;}
.qn-challenge-checkin-entry .ce-text{flex:1;font-size:15px;}
.qn-challenge-checkin-entry .ce-arrow{font-size:22px;opacity:0.8;}

/* ========== 响应式断点 ========== */
/* 平板：奖品 2 列，亮点纵向 */
@media (max-width:991px){
    .qn-challenge-banner .banner-content{padding:32px 24px;}
    .qn-challenge-banner .banner-title{font-size:26px;}
    .qn-challenge-prizes .prizes-grid{grid-template-columns:repeat(2,1fr);}
    .qn-challenge-highlights{flex-direction:column;}
    .qn-challenge-highlights .hl-card{padding:18px 14px;}
}

/* 手机：单列，紧凑间距 */
@media (max-width:767px){
    .qn-challenge-banner,.qn-challenge-highlights,.qn-challenge-steps,
    .qn-challenge-rules,.qn-challenge-leaderboard,.qn-challenge-prizes,
    .qn-challenge-faq,.qn-challenge-cta,.qn-challenge-checkin-entry{margin:14px auto;}
    .qn-challenge-banner{border-radius:14px;}
    .qn-challenge-banner .banner-content{padding:28px 18px;}
    .qn-challenge-banner .banner-icon{font-size:42px;}
    .qn-challenge-banner .banner-title{font-size:22px;}
    .qn-challenge-banner .banner-subtitle{font-size:14px;margin-bottom:18px;}
    .qn-challenge-banner .banner-stats{gap:24px;margin-bottom:14px;}
    .qn-challenge-banner .bs-num{font-size:22px;}
    .qn-challenge-banner .banner-period{font-size:12px;margin-bottom:18px;}
    .qn-challenge-banner .banner-actions{gap:10px;}
    .qn-challenge-banner .btn-join,.qn-challenge-banner .btn-secondary{padding:12px 24px;font-size:14px;}
    .qn-challenge-steps,.qn-challenge-rules,.qn-challenge-leaderboard,
    .qn-challenge-prizes,.qn-challenge-faq{padding:18px;border-radius:14px;}
    .qn-challenge-steps .steps-title,.qn-challenge-rules .rules-title,
    .qn-challenge-leaderboard .lb-title,.qn-challenge-faq .faq-title{font-size:16px;margin-bottom:14px;}
    .qn-challenge-steps .steps-row{gap:8px;}
    .qn-challenge-steps .step-num{width:40px;height:40px;font-size:18px;}
    .qn-challenge-steps .step-text{font-size:12px;}
    .qn-challenge-steps .step-text small{font-size:11px;}
    .qn-challenge-rules .rules-table th,.qn-challenge-rules .rules-table td{padding:8px 6px;font-size:13px;}
    .qn-challenge-leaderboard .rank-row{padding:10px;gap:10px;}
    .qn-challenge-leaderboard .rank-pos{width:36px;font-size:18px;}
    .qn-challenge-leaderboard .rank-avatar{width:34px;height:34px;font-size:15px;}
    .qn-challenge-leaderboard .rank-name{font-size:14px;}
    .qn-challenge-leaderboard .rank-score{font-size:17px;}
    .qn-challenge-prizes .prizes-grid{grid-template-columns:1fr;}
    .qn-challenge-cta{padding:28px 20px;border-radius:14px;}
    .qn-challenge-cta .cta-title{font-size:17px;}
    .qn-challenge-cta .cta-btn{padding:14px 32px;font-size:15px;}
    .qn-challenge-checkin-entry{padding:14px 18px;}
    .qn-challenge-checkin-entry .ce-icon{font-size:22px;}
    .qn-challenge-checkin-entry .ce-text{font-size:14px;}
}