/* ============================================================
   tem_question 邀请好友页样式
   主题色：绿色（邀请裂变） + 金色（奖励）
   响应式：宽度对齐首页 .container（1170px），桌面多列，移动单列
   ============================================================ */
.qn-inv-banner,.qn-inv-dual-rewards,.qn-inv-link-section,
.qn-inv-rules,.qn-inv-history,.qn-inv-entries{
    margin:20px auto;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}

/* ========== Banner ========== */
.qn-inv-banner{
    position:relative;border-radius:20px;overflow:hidden;
    box-shadow:0 16px 40px rgba(0,0,0,0.16);color:#fff;
}
.qn-inv-banner .inv-banner-bg{
    position:absolute;inset:0;
    background:linear-gradient(135deg,#11998e 0%,#38ef7d 50%,#56ab2f 100%);
    z-index:0;
}
.qn-inv-banner .inv-banner-bg::before{
    content:"";position:absolute;top:-30%;right:-10%;
    width:320px;height:320px;background:rgba(255,255,255,0.12);border-radius:50%;
}
.qn-inv-banner .inv-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-inv-banner .inv-banner-content{position:relative;z-index:1;padding:40px 32px;text-align:center;}
.qn-inv-banner .inv-banner-icon{font-size:52px;margin-bottom:12px;}
.qn-inv-banner .inv-banner-title{font-size:28px;font-weight:700;margin:0 0 8px;text-shadow:0 2px 10px rgba(0,0,0,0.15);}
.qn-inv-banner .inv-banner-subtitle{font-size:15px;opacity:0.95;margin-bottom:24px;}
.qn-inv-banner .inv-banner-stats{display:flex;justify-content:center;gap:48px;margin-bottom:0;}
.qn-inv-banner .ibs-item{display:flex;flex-direction:column;align-items:center;}
.qn-inv-banner .ibs-num{font-size:30px;font-weight:700;color:#ffd700;}
.qn-inv-banner .ibs-label{font-size:13px;opacity:0.85;margin-top:4px;}

/* ========== 双向奖励卡片（桌面 2 列 / 手机 1 列） ========== */
.qn-inv-dual-rewards{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.qn-inv-dual-rewards .inv-dual-card{
    background:#fff;border-radius:16px;padding:22px 18px;text-align:center;
    box-shadow:0 6px 20px rgba(0,0,0,0.06);transition:all 0.25s ease;
}
.qn-inv-dual-rewards .inv-dual-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(0,0,0,0.1);}
.qn-inv-dual-rewards .inv-dual-me{border:2px solid #11998e;}
.qn-inv-dual-rewards .inv-dual-friend{border:2px solid #ff6b35;}
.qn-inv-dual-rewards .idc-icon{font-size:40px;margin-bottom:10px;}
.qn-inv-dual-rewards .idc-title{font-size:16px;font-weight:700;color:#333;margin-bottom:12px;}
.qn-inv-dual-rewards .inv-dual-me .idc-title{color:#11998e;}
.qn-inv-dual-rewards .inv-dual-friend .idc-title{color:#ff6b35;}
.qn-inv-dual-rewards .idc-list{display:flex;flex-direction:column;gap:6px;}
.qn-inv-dual-rewards .idc-item{font-size:13px;color:#555;text-align:left;}

/* ========== 邀请链接区 ========== */
.qn-inv-link-section{background:#fff;border-radius:16px;padding:24px 28px;box-shadow:0 6px 20px rgba(0,0,0,0.06);}
.qn-inv-link-section .ils-title{font-size:17px;font-weight:700;margin-bottom:18px;color:#333;}
.qn-inv-link-section .ils-link-box{display:flex;gap:10px;margin-bottom:14px;}
.qn-inv-link-section .ils-link-input{
    flex:1;padding:12px 14px;border:2px solid #11998e;border-radius:10px;
    font-size:13px;color:#333;background:#f8fff9;
}
.qn-inv-link-section .ils-copy-btn{
    padding:12px 18px;border:none;border-radius:10px;cursor:pointer;
    background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff;
    font-size:14px;font-weight:600;white-space:nowrap;transition:all 0.2s;
}
.qn-inv-link-section .ils-copy-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(17,153,142,0.3);}
.qn-inv-link-section .ils-code-box{
    display:flex;align-items:center;justify-content:center;gap:12px;
    padding:16px 18px;background:#f8fff9;border-radius:12px;margin-bottom:18px;
}
.qn-inv-link-section .ils-code-label{font-size:14px;color:#666;}
.qn-inv-link-section .ils-code-value{
    font-size:22px;font-weight:700;color:#11998e;
    font-family:'Courier New',monospace;letter-spacing:3px;
}
.qn-inv-link-section .ils-actions{display:flex;gap:12px;}
.qn-inv-link-section .ils-btn-share{
    flex:1;padding:14px;border:none;border-radius:12px;cursor:pointer;
    background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff;
    font-size:15px;font-weight:600;transition:all 0.2s;
}
.qn-inv-link-section .ils-btn-share:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(17,153,142,0.3);}
.qn-inv-link-section .ils-btn-poster{
    flex:1;padding:14px;border:1px solid #11998e;border-radius:12px;cursor:pointer;
    background:#fff;color:#11998e;font-size:15px;font-weight:600;transition:all 0.2s;
}
.qn-inv-link-section .ils-btn-poster:hover{background:#f8fff9;}

/* ========== 奖励阶梯 ========== */
.qn-inv-rules{background:#fff;border-radius:16px;padding:24px 28px;box-shadow:0 6px 20px rgba(0,0,0,0.06);}
.qn-inv-rules .ir-title{font-size:17px;font-weight:700;margin-bottom:18px;color:#333;}
.qn-inv-rules .ir-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.qn-inv-rules .ir-item{
    display:flex;justify-content:space-between;align-items:center;gap:12px;
    padding:16px 18px;background:linear-gradient(135deg,#f8fff9,#f0fff4);
    border-radius:12px;border:1px solid rgba(17,153,142,0.15);transition:all 0.2s;
}
.qn-inv-rules .ir-item:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(17,153,142,0.12);}
.qn-inv-rules .ir-condition{font-size:14px;color:#333;font-weight:600;flex:1;}
.qn-inv-rules .ir-reward{font-size:14px;color:#ff6b35;font-weight:600;}

/* ========== 邀请历史 ========== */
.qn-inv-history{background:#fff;border-radius:16px;padding:24px 28px;box-shadow:0 6px 20px rgba(0,0,0,0.06);}
.qn-inv-history .ih-title{font-size:17px;font-weight:700;margin-bottom:18px;color:#333;}
.qn-inv-history .ih-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.qn-inv-history .inv-history-row{
    display:flex;align-items:center;gap:12px;padding:14px 16px;
    background:#f8f9fb;border-radius:12px;transition:all 0.2s;
}
.qn-inv-history .inv-history-row:hover{background:#f0f2f5;}
.qn-inv-history .inv-h-avatar{
    width:40px;height:40px;border-radius:50%;
    background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:600;flex-shrink:0;
}
.qn-inv-history .inv-h-name{flex:1;font-size:14px;color:#333;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.qn-inv-history .inv-h-time{font-size:12px;color:#999;}
.qn-inv-history .inv-h-status{font-size:14px;color:#4caf50;font-weight:600;}
.qn-inv-history .inv-history-empty{
    grid-column:1/-1;text-align:center;padding:36px;color:#999;font-size:15px;
}

/* ========== 常用入口（桌面 4 列 / 平板 2 列 / 手机 1 列） ========== */
.qn-inv-entries{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.qn-inv-entries .inv-entry-card{
    display:flex;flex-direction:column;align-items:center;gap:8px;
    padding:18px 12px;border-radius:14px;text-decoration:none;color:#fff;
    transition:all 0.25s;box-shadow:0 6px 16px rgba(0,0,0,0.08);
}
.qn-inv-entries .inv-entry-card:hover{transform:translateY(-3px);box-shadow:0 10px 22px rgba(0,0,0,0.12);}
.qn-inv-entries .inv-entry-checkin{background:linear-gradient(135deg,#667eea,#764ba2);}
.qn-inv-entries .inv-entry-challenge{background:linear-gradient(135deg,#ff9a56,#ff6b35);}
.qn-inv-entries .inv-entry-onboarding{background:linear-gradient(135deg,#11998e,#38ef7d);}
.qn-inv-entries .iec-icon{font-size:28px;}
.qn-inv-entries .iec-text{font-size:14px;font-weight:600;}
.qn-inv-entries .iec-arrow{font-size:18px;opacity:0.8;}

/* ========== 响应式断点 ========== */
/* 平板：奖励阶梯和邀请历史单列，入口 2 列 */
@media (max-width:991px){
    .qn-inv-banner .inv-banner-content{padding:32px 24px;}
    .qn-inv-banner .inv-banner-title{font-size:24px;}
    .qn-inv-rules .ir-list{grid-template-columns:1fr;}
    .qn-inv-history .ih-list{grid-template-columns:1fr;}
    .qn-inv-entries{grid-template-columns:repeat(2,1fr);}
}

/* 手机：单列，紧凑间距 */
@media (max-width:767px){
    .qn-inv-banner,.qn-inv-dual-rewards,.qn-inv-link-section,
    .qn-inv-rules,.qn-inv-history,.qn-inv-entries{margin:14px auto;}
    .qn-inv-banner{border-radius:14px;}
    .qn-inv-banner .inv-banner-content{padding:28px 18px;}
    .qn-inv-banner .inv-banner-icon{font-size:42px;}
    .qn-inv-banner .inv-banner-title{font-size:20px;}
    .qn-inv-banner .inv-banner-subtitle{font-size:13px;margin-bottom:18px;}
    .qn-inv-banner .inv-banner-stats{gap:24px;}
    .qn-inv-banner .ibs-num{font-size:24px;}
    .qn-inv-dual-rewards{grid-template-columns:1fr;}
    .qn-inv-dual-rewards .inv-dual-card{padding:18px 14px;}
    .qn-inv-link-section,.qn-inv-rules,.qn-inv-history{padding:18px;border-radius:14px;}
    .qn-inv-link-section .ils-title,.qn-inv-rules .ir-title,.qn-inv-history .ih-title{font-size:16px;margin-bottom:14px;}
    .qn-inv-link-section .ils-link-box{flex-direction:column;}
    .qn-inv-link-section .ils-actions{flex-direction:column;}
    .qn-inv-link-section .ils-code-value{font-size:18px;letter-spacing:2px;}
    .qn-inv-entries{grid-template-columns:1fr;gap:10px;}
    .qn-inv-entries .inv-entry-card{padding:14px;flex-direction:row;justify-content:flex-start;}
    .qn-inv-entries .iec-icon{font-size:24px;}
    .qn-inv-entries .iec-text{font-size:14px;}
}

/* ========== 海报生成弹窗 ========== */
.poster-modal-mask{
    position:fixed;inset:0;background:rgba(0,0,0,0.75);
    display:none;align-items:flex-start;justify-content:center;
    z-index:2000;padding:20px;overflow-y:auto;
}
.poster-modal-mask.show{display:flex;animation:qnFadeIn 0.3s ease;}
.poster-modal{
    background:#fff;border-radius:16px;width:100%;
    max-width:clamp(320px,92vw,420px);
    height:auto;overflow:visible;position:relative;
    animation:qnSlideUp 0.4s cubic-bezier(0.175,0.885,0.32,1.275);
    flex:none;margin:auto 0;
}
.poster-modal-header{
    display:flex;justify-content:space-between;align-items:center;
    padding:14px 18px;border-bottom:1px solid #f0f0f0;background:#fff;z-index:1;
    border-radius:16px 16px 0 0;
}
.poster-modal-title{font-size:16px;font-weight:700;color:#333;}
.poster-modal-close{
    width:30px;height:30px;border:none;background:#f5f5f5;border-radius:50%;
    font-size:20px;line-height:1;cursor:pointer;color:#666;transition:all 0.2s;
}
.poster-modal-close:hover{background:#ff6b35;color:#fff;}
.poster-modal-body{padding:16px 18px;}
.poster-canvas-wrap{
    display:flex;justify-content:center;margin-bottom:16px;
}
.poster-canvas{
    width:auto;max-width:100%;height:auto;
    max-height:min(65vh,620px);
    border-radius:10px;
    box-shadow:0 6px 20px rgba(0,0,0,0.15);
    object-fit:contain;
}
.poster-tpl-list{
    display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
}
.poster-tpl-item{
    display:flex;flex-direction:column;align-items:center;gap:5px;
    padding:8px 4px;border:2px solid transparent;border-radius:8px;
    cursor:pointer;transition:all 0.2s;
}
.poster-tpl-item:hover{border-color:#11998e;}
.poster-tpl-item.active{border-color:#ff6b35;background:#fff8f5;}
.poster-tpl-thumb{
    width:42px;height:56px;border-radius:5px;object-fit:cover;
    border:1px solid rgba(0,0,0,0.1);
}
.poster-tpl-item span{font-size:11px;color:#666;}
.poster-tpl-item.active span{color:#ff6b35;font-weight:600;}
.poster-modal-footer{
    padding:14px 18px;border-top:1px solid #f0f0f0;text-align:center;
    background:#fff;border-radius:0 0 16px 16px;
}
.poster-btn-download{
    width:100%;padding:12px;border:none;border-radius:10px;cursor:pointer;
    background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff;
    font-size:15px;font-weight:600;transition:all 0.2s;
    box-shadow:0 5px 14px rgba(17,153,142,0.3);
}
.poster-btn-download:hover{transform:translateY(-1px);box-shadow:0 7px 18px rgba(17,153,142,0.4);}

/* 手机端海报弹窗 */
@media (max-width:767px){
    .poster-modal-mask{padding:8px;}
    .poster-modal{max-width:clamp(280px,94vw,380px);}
    .poster-modal-header{padding:12px 14px;}
    .poster-modal-body{padding:12px 14px;}
    .poster-canvas{max-height:min(58vh,560px);}
    .poster-canvas-wrap{margin-bottom:12px;}
    .poster-tpl-list{grid-template-columns:repeat(4,1fr);gap:5px;}
    .poster-tpl-thumb{width:36px;height:48px;}
    .poster-tpl-item span{font-size:10px;}
    .poster-modal-footer{padding:12px 14px;}
    .poster-btn-download{padding:11px;font-size:14px;}
}