.bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;height:calc(var(--bottom-nav-height) + var(--safe-bottom));padding-bottom:var(--safe-bottom);background:#1a1a2ef2;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-top:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-around;z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 10px;color:var(--text-muted);transition:color .2s;text-decoration:none}.nav-item.active{color:var(--accent-orange)}.nav-icon{font-size:20px;line-height:1}.nav-label{font-size:10px;font-weight:500}.loading-screen{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:var(--bg-primary)}.loading-spinner{width:36px;height:36px;border:3px solid rgba(255,255,255,.1);border-top-color:var(--accent-orange);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{font-size:13px;color:var(--text-muted)}.insufficient-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#0009;display:flex;align-items:flex-end;justify-content:center;animation:fade-in .2s ease}.insufficient-sheet{width:100%;max-width:480px;background:var(--bg-secondary);border-radius:var(--radius-xl) var(--radius-xl) 0 0;padding:12px 24px calc(24px + var(--safe-bottom));text-align:center;animation:slide-up .3s ease}.insufficient-icon{font-size:48px;margin-bottom:8px}.insufficient-title{font-size:20px;font-weight:700;margin-bottom:10px}.insufficient-desc{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:16px}.insufficient-desc strong{color:var(--accent-gold)}.insufficient-desc .shortage{color:var(--accent-orange)}.insufficient-balance{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);margin-bottom:16px;font-size:13px;color:var(--text-muted)}.insufficient-balance-value{font-size:16px;font-weight:700;color:var(--accent-gold)}.insufficient-recharge-btn{width:100%;padding:14px;font-size:15px;margin-bottom:8px}.insufficient-hint{font-size:11px;color:var(--text-muted);margin-bottom:12px}.insufficient-close{width:100%;padding:12px;border-radius:var(--radius-md)}.participant-row{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md)}.participant-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;flex-shrink:0}.participant-info{flex:1;min-width:0}.participant-name{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:600}.participant-meta{font-size:11px;color:var(--text-muted);margin-top:2px;display:block}.participant-more-wrap{display:flex;justify-content:center;margin-top:4px}.winner-list{display:flex;flex-direction:column;gap:10px}.winner-card{display:flex;align-items:center;gap:8px;width:100%;padding:12px 12px 12px 14px;text-align:left;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);transition:border-color .15s,background .15s,transform .15s}.winner-card:active{transform:scale(.99);background:var(--bg-card-hover);border-color:#ffd70040}.winner-card-main{flex:1;min-width:0;display:flex;align-items:center;gap:10px}.winner-card-left{flex-shrink:0;display:flex;flex-direction:column;gap:4px;width:72px}.winner-card-period{display:inline-block;font-size:11px;font-weight:700;color:var(--accent-purple);background:#7c3aed26;padding:3px 8px;border-radius:6px;white-space:nowrap}.winner-card-time{font-size:9px;color:var(--text-muted);line-height:1.35;font-variant-numeric:tabular-nums}.winner-card-center{flex:1;min-width:0;display:flex;align-items:center;gap:8px}.winner-card-avatar{width:36px;height:36px;border-radius:50%;flex-shrink:0;background:#ffffff0f;border:1px solid var(--border-color)}.winner-card-user{min-width:0;display:flex;flex-direction:column;gap:2px}.winner-card-label{font-size:9px;color:var(--text-muted)}.winner-card-name{font-size:14px;font-weight:700;color:var(--accent-gold);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.winner-card-lucky{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:2px;min-width:48px;padding:6px 8px;background:#ff6b351a;border:1px solid rgba(255,107,53,.2);border-radius:var(--radius-sm)}.winner-card-lucky-label{font-size:9px;color:var(--text-muted)}.winner-card-lucky-value{font-size:16px;font-weight:800;color:var(--accent-orange);font-variant-numeric:tabular-nums;line-height:1}.winner-card-arrow{flex-shrink:0;font-size:20px;font-weight:300;color:var(--text-muted);line-height:1;opacity:.6}.winners-page-content .winner-list{margin:0 16px 24px}.channel-guide{padding-top:0}.channel-guide.prominent .channel-card{border-color:#7c3aed66;background:linear-gradient(135deg,rgba(124,58,237,.1) 0%,var(--bg-card) 100%)}.channel-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:16px}.channel-hint{font-size:12px;color:var(--text-muted);margin:-8px 0 12px}.channel-list{display:flex;flex-direction:column;gap:10px}.channel-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:#ffffff0a;border-radius:var(--radius-md);gap:10px}.channel-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.channel-icon{font-size:20px;flex-shrink:0}.channel-text{display:flex;flex-direction:column;gap:2px;min-width:0}.channel-name-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.channel-reward{font-size:11px;font-weight:700;color:var(--accent-gold);background:#ffd7001f;padding:1px 6px;border-radius:4px;flex-shrink:0}.channel-name{font-size:13px;font-weight:600;color:var(--text-primary)}.channel-desc{font-size:11px;color:var(--text-muted)}.channel-action{flex-shrink:0;font-size:12px;font-weight:600;color:var(--accent-blue);background:#3b82f626;padding:6px 14px;border-radius:20px;transition:background .15s}.channel-action:active{background:#3b82f64d}.gate-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#0009;display:flex;align-items:flex-end;justify-content:center;animation:fade-in .2s ease}.gate-sheet{width:100%;max-width:480px;background:var(--bg-secondary);border-radius:var(--radius-xl) var(--radius-xl) 0 0;padding:12px 20px calc(20px + var(--safe-bottom));animation:slide-up .3s ease}.gate-title{font-size:18px;font-weight:700;margin-bottom:6px}.gate-desc{font-size:13px;color:var(--text-secondary);margin-bottom:12px;line-height:1.5}.gate-reward-banner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px;margin-bottom:14px;background:linear-gradient(135deg,#ffd70026,#ff6b351a);border:1px solid rgba(255,215,0,.35);border-radius:var(--radius-md)}.gate-reward-left{display:flex;align-items:center;gap:10px}.gate-reward-icon{font-size:28px;flex-shrink:0}.gate-reward-title{display:block;font-size:13px;font-weight:700;color:var(--text-primary)}.gate-reward-sub{display:block;font-size:11px;color:var(--text-muted);margin-top:2px}.gate-reward-value{font-size:22px;font-weight:800;color:var(--accent-gold);flex-shrink:0}.gate-reward-tip{text-align:center;font-size:13px;color:var(--text-secondary);margin-bottom:10px;line-height:1.5}.gate-reward-tip strong{color:var(--accent-gold);font-weight:700}.gate-claimed{text-align:center;font-size:13px;font-weight:600;color:var(--accent-green);margin-bottom:10px}.gate-list{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}.gate-item{display:flex;align-items:center;gap:12px;padding:14px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md)}.gate-item.done{opacity:.7}.gate-item-icon{font-size:24px;flex-shrink:0}.gate-item-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.gate-item-name{font-size:14px;font-weight:600}.gate-item-desc{font-size:11px;color:var(--text-muted)}.gate-item-btn{font-size:11px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--accent-purple) 0%,var(--accent-blue) 100%);padding:6px 10px;border-radius:16px;white-space:nowrap}.gate-item-actions{display:flex;flex-direction:column;gap:6px;flex-shrink:0}.gate-item-verify-btn{font-size:11px;font-weight:600;color:var(--text-primary);background:#ffffff1a;border:1px solid var(--border-color);padding:6px 10px;border-radius:16px;white-space:nowrap}.gate-item-verify-btn:active{opacity:.85}.gate-item-status{font-size:12px;font-weight:600;color:var(--accent-green);flex-shrink:0}.gate-confirm-btn{width:100%;padding:12px;margin-bottom:10px;font-size:14px}.gate-hint{text-align:center;font-size:12px;color:var(--text-muted);margin-bottom:12px}.gate-close{width:100%;padding:12px;text-align:center;border-radius:var(--radius-md)}.activity-detail-page{height:100%;display:flex;flex-direction:column;background:var(--bg-primary)}.detail-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:12px;padding:12px 16px;padding-top:max(12px,env(safe-area-inset-top));background:#0f0f1af2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);flex-shrink:0}.detail-back{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:#ffffff14;border-radius:50%;color:var(--text-primary);font-size:18px}.detail-header h1{font-size:17px;font-weight:700}.detail-content{flex:1;overflow-y:auto;padding-bottom:16px;-webkit-overflow-scrolling:touch}.detail-hero{background:var(--bg-card);border-bottom:1px solid var(--border-color)}.detail-image{width:100%;height:200px;object-fit:cover}.detail-hero-info{padding:14px 16px}.detail-tag{display:inline-block;font-size:11px;font-weight:600;padding:2px 8px;border-radius:20px;background:#ff6b3526;color:var(--accent-orange);margin-bottom:8px}.detail-title{font-size:18px;font-weight:700;line-height:1.35;margin-bottom:10px}.detail-stats-row{display:flex;justify-content:space-between;font-size:13px;color:var(--text-secondary);margin-bottom:8px}.detail-stats-row strong{color:var(--accent-orange)}.detail-cost{color:var(--accent-gold);font-weight:600}.detail-countdown{margin-top:10px;font-size:13px;color:var(--text-muted)}.detail-countdown strong{color:var(--accent-orange);font-variant-numeric:tabular-nums}.detail-section{padding:16px;border-bottom:1px solid var(--border-color)}.detail-section-title{font-size:15px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:8px}.detail-section-badge{font-size:11px;font-weight:600;color:var(--accent-blue);background:#3b82f61f;padding:2px 8px;border-radius:10px}.detail-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.detail-section-header .detail-section-title{margin-bottom:0}.detail-section-sub{font-size:12px;color:var(--text-muted);margin-bottom:10px}.detail-desc{font-size:14px;color:var(--text-secondary);line-height:1.6}.detail-rules-brief{background:linear-gradient(135deg,rgba(37,99,235,.08) 0%,transparent 100%)}.detail-rules-text{font-size:13px;color:var(--text-secondary);line-height:1.6;margin-bottom:10px}.detail-rules-link{font-size:13px;font-weight:600;color:var(--accent-blue);background:#3b82f61a;padding:10px 14px;border-radius:var(--radius-md);width:100%;text-align:left}.detail-more-btn{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;color:var(--accent-blue);background:linear-gradient(135deg,#3b82f61f,#7c3aed14);border:1px solid rgba(59,130,246,.25);padding:6px 12px;border-radius:20px;flex-shrink:0;transition:background .15s,border-color .15s,transform .15s}.detail-more-btn:active{transform:scale(.96);background:#3b82f633;border-color:#3b82f666}.detail-more-arrow{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;font-size:12px;background:#3b82f626;border-radius:50%;transition:transform .15s}.detail-more-btn:active .detail-more-arrow{transform:translate(2px)}.detail-more-btn-block{width:100%;justify-content:center;padding:10px 16px}.participant-list{display:flex;flex-direction:column;gap:8px}.participants-page-content{padding-top:8px}.participants-page-sub{padding:0 16px 12px;font-size:13px;color:var(--text-muted)}.participants-page-list{padding:0 16px 24px}.winner-table{border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden}.winner-table-head,.winner-table-row{display:grid;grid-template-columns:1fr 1.5fr .9fr .7fr;gap:6px;padding:10px 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rgba(255,107,53,.35)}.detail-insufficient-text{display:flex;flex-direction:column;gap:2px;font-size:11px;color:var(--text-secondary);line-height:1.4}.detail-insufficient-label{font-size:13px;font-weight:700;color:var(--accent-orange)}.detail-insufficient-link{flex-shrink:0;padding:8px 14px;font-size:13px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--accent-orange) 0%,#e55a2b 100%);border-radius:var(--radius-md)}.detail-insufficient-link:active{opacity:.9}.detail-share-picker{padding:10px 16px;background:#161628fa;border-bottom:1px solid var(--border-color)}.share-picker-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.share-picker-label{font-size:13px;font-weight:600;color:var(--text-secondary)}.share-stepper{display:flex;align-items:center;gap:12px}.share-stepper-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:var(--text-primary);background:#ffffff1a;border-radius:8px}.share-stepper-btn:disabled{opacity:.35;cursor:not-allowed}.share-stepper-btn:not(:disabled):active{opacity:.8}.share-stepper-value{min-width:56px;text-align:center;font-size:15px;font-weight:700;color:var(--accent-gold);font-variant-numeric:tabular-nums}.share-picker-hint{margin-top:6px;font-size:11px;color:var(--text-muted);text-align:right}.share-picker-hint strong{color:var(--accent-orange);font-weight:700}.detail-bottom-bar{display:flex;gap:10px;padding:10px 16px}.detail-share-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;width:72px;flex-shrink:0;background:#ffffff14;border-radius:var(--radius-md);color:var(--text-primary);padding:8px 4px}.bottom-btn-icon{font-size:18px;line-height:1}.bottom-btn-label{font-size:11px;font-weight:600}.bottom-btn-reward{font-size:9px;color:var(--accent-gold);font-weight:600}.detail-join-btn{flex:1;font-size:15px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--accent-orange) 0%,#ff4757 100%);padding:14px;border-radius:var(--radius-md);box-shadow:0 4px 16px #ff6b3559}.detail-join-btn:active{opacity:.9}.detail-join-btn--insufficient{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 4px 16px #10b98159}.winners-page-content{padding-top:8px}.winners-page-sub{padding:0 16px 12px;font-size:13px;color:var(--text-muted)}.winners-page-content .winner-table{margin:0 16px 24px}.winner-period-page{height:100%;display:flex;flex-direction:column;background:var(--bg-primary)}.winner-period-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:12px;padding:12px 16px;padding-top:max(12px,env(safe-area-inset-top));background:#0f0f1af2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);flex-shrink:0}.winner-period-back{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:#ffffff14;border-radius:50%;color:var(--text-primary);font-size:18px}.winner-period-header h1{font-size:17px;font-weight:700}.winner-period-content{flex:1;overflow-y:auto;padding:16px;padding-bottom:calc(24px + var(--safe-bottom))}.winner-period-card{display:flex;flex-direction:column;align-items:center;padding:20px 16px;margin-bottom:16px;background:linear-gradient(135deg,#ffd7001f,#ff6b351a);border:1px solid 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var(--border-color);border-radius:var(--radius-md)}.winner-period-section-title{font-size:14px;font-weight:700;margin-bottom:10px}.winner-period-info-list{display:flex;flex-direction:column;gap:8px}.winner-period-info-item{display:flex;justify-content:space-between;gap:12px;font-size:12px}.winner-period-info-label{color:var(--text-muted);flex-shrink:0}.winner-period-info-value{color:var(--text-primary);font-weight:600;text-align:right;word-break:break-all;font-variant-numeric:tabular-nums}.winner-period-rules-desc{font-size:12px;color:var(--text-secondary);line-height:1.5;margin-bottom:12px}.winner-period-subsection{margin-bottom:12px}.winner-period-subtitle{font-size:11px;font-weight:600;color:var(--text-muted);margin-bottom:8px}.winner-period-klines{list-style:none;display:flex;flex-direction:column;gap:6px;margin-bottom:8px}.winner-period-kline{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:8px;padding:8px 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