:root{--ios-blue: #007AFF;--ios-green: #34C759;--ios-red: #FF3B30;--ios-orange: #FF9500;--ios-yellow: #FFCC00;--ios-gray: #8E8E93;--ios-gray2: #AEAEB2;--ios-gray3: #C7C7CC;--ios-gray4: #D1D1D6;--ios-gray5: #E5E5EA;--ios-gray6: #F2F2F7;--primary: var(--ios-blue);--success: var(--ios-green);--danger: var(--ios-red);--warning: var(--ios-orange);--bg-body: #F2F2F7;--bg-card: #FFFFFF;--bg-modal: #FFFFFF;--text-primary: #000000;--text-secondary: #8E8E93;--text-tertiary: #C7C7CC;--separator: #C6C6C8;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--radius-card: 16px;--radius-btn: 999px;--radius-input: 10px;--font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;--glass-bg: rgba(255, 255, 255, .85);--glass-border: rgba(0, 0, 0, .1)}@media (prefers-color-scheme: dark){:root{--bg-body: #000000;--bg-card: #1C1C1E;--bg-modal: #1C1C1E;--text-primary: #FFFFFF;--text-secondary: #8E8E93;--text-tertiary: #48484A;--separator: #38383A;--glass-bg: rgba(30, 30, 30, .85);--glass-border: rgba(255, 255, 255, .1);--shadow-sm: none;--shadow-md: none}}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-stack);background-color:var(--bg-body);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;padding-bottom:env(safe-area-inset-bottom)}.app-container{max-width:480px;margin:0 auto;min-height:100vh;background-color:var(--bg-body);position:relative}.page{padding:20px 16px;padding-bottom:calc(90px + env(safe-area-inset-bottom))}.page-title{font-size:34px;font-weight:700;letter-spacing:-.5px;margin-bottom:20px;color:var(--text-primary)}.section-title{font-size:22px;font-weight:700;margin-bottom:12px;color:var(--text-primary)}.text-caption{font-size:13px;color:var(--text-secondary)}.card{background-color:var(--bg-card);border-radius:var(--radius-card);padding:16px;margin-bottom:16px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;transition:background-color .2s}.card:active{background-color:var(--ios-gray5)}@media (prefers-color-scheme: dark){.card:active{background-color:#2c2c2e}}.card-clickable{cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 24px;border-radius:var(--radius-btn);font-size:17px;font-weight:600;border:none;cursor:pointer;transition:opacity .2s,transform .1s;width:100%}.btn:active{opacity:.7;transform:scale(.98)}.btn-primary{background-color:var(--primary);color:#fff}.btn-success{background-color:var(--success);color:#fff}.btn-danger{background-color:var(--danger);color:#fff}.btn-outline{background-color:transparent;color:var(--primary);border:1px solid var(--primary)}.btn-sm{padding:8px 16px;font-size:14px;width:auto}.btn-group{display:flex;gap:12px}.btn-group .btn{flex:1}.form-group{margin-bottom:20px}.form-label{display:block;font-size:13px;color:var(--text-secondary);font-weight:500;margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}.form-input{width:100%;padding:14px 16px;background-color:var(--bg-card);border:none;border-radius:var(--radius-input);font-size:17px;color:var(--text-primary);box-shadow:var(--shadow-sm)}.form-input:focus{outline:2px solid var(--primary);outline-offset:-2px}textarea.form-input{resize:vertical;min-height:120px}input[type=number]{-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.file-input-hidden{display:none}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;background-color:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:.5px solid var(--glass-border);display:flex;justify-content:space-around;padding:10px 0;padding-bottom:max(10px,env(safe-area-inset-bottom));z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;color:var(--text-secondary);font-size:10px;font-weight:500;transition:color .2s}.nav-item.active{color:var(--primary)}.nav-icon{font-size:24px;margin-bottom:2px}.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:6px;font-size:13px;font-weight:600}.badge-points,.badge-pending{background-color:#ff950026;color:var(--ios-orange)}.badge-approved{background-color:#34c75926;color:var(--ios-green)}.badge-rejected{background-color:#ff3b3026;color:var(--ios-red)}.badge-active{background-color:#007aff26;color:var(--ios-blue)}.page-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px}.login-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px;background-color:var(--bg-body)}.login-card{width:100%;max-width:400px}.login-logo{text-align:center;margin-bottom:40px}.login-logo-icon{font-size:64px;margin-bottom:16px;filter:drop-shadow(0 4px 10px rgba(0,0,0,.1))}.login-logo h1{font-size:28px;font-weight:700;color:var(--text-primary)}.login-logo p{font-size:15px;color:var(--text-secondary);margin-top:4px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:200;display:flex;align-items:flex-end;justify-content:center}.modal-content{width:100%;max-width:480px;background-color:var(--bg-modal);border-top-left-radius:24px;border-top-right-radius:24px;padding:24px;padding-bottom:max(24px,env(safe-area-inset-bottom));animation:slideUp .3s cubic-bezier(.16,1,.3,1)}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.modal-title{font-size:20px;font-weight:700;margin-bottom:20px;text-align:center}.toast{position:fixed;top:16px;left:50%;transform:translate(-50%);z-index:1000;padding:12px 20px;border-radius:30px;background-color:#323232e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;font-size:15px;font-weight:500;box-shadow:0 4px 12px #00000026;display:flex;align-items:center;gap:8px}.toast-error{background-color:var(--ios-red)}.toast-success{background-color:var(--ios-green)}.rank-badge{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;z-index:1;margin-top:-12px}.rank-1{background-color:var(--ios-yellow);box-shadow:0 2px 8px #ffcc0080}.rank-2{background-color:var(--ios-gray2)}.rank-3{background-color:#cd7f32}.leaderboard-top{display:flex;align-items:flex-end;justify-content:center;gap:20px;padding:30px 0;margin-bottom:20px}.leaderboard-item{display:flex;flex-direction:column;align-items:center;gap:8px;position:relative}.leaderboard-avatar{width:60px;height:60px;border-radius:50%;background-color:var(--ios-gray5);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:600;color:var(--text-primary);border:2px solid var(--bg-card)}.leaderboard-item:nth-child(2) .leaderboard-avatar{width:80px;height:80px;font-size:32px;border:3px solid var(--ios-yellow)}.leaderboard-name{font-size:13px;font-weight:600;max-width:80px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}.leaderboard-points{font-size:12px;color:var(--ios-orange);font-weight:700}.rank-list-item{display:flex;align-items:center;gap:16px;padding:12px 0;border-bottom:.5px solid var(--separator)}.rank-list-item:last-child{border-bottom:none}.rank-number{width:30px;text-align:center;font-size:17px;font-weight:600;color:var(--text-secondary)}.rank-avatar-sm{width:44px;height:44px;border-radius:50%;background-color:var(--ios-gray5);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:600;color:var(--text-primary)}.rank-info{flex:1}.rank-info-name{font-size:17px;font-weight:600}.rank-info-points{font-size:15px;font-weight:500;color:var(--ios-orange)}.profile-header{display:flex;flex-direction:column;align-items:center;padding:30px 0;background-color:transparent}.profile-avatar{width:88px;height:88px;border-radius:50%;background-color:var(--ios-gray5);color:var(--text-secondary);font-size:36px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-bottom:16px}.profile-name{font-size:24px;font-weight:700;margin-bottom:4px}.profile-id{font-size:15px;color:var(--text-secondary)}.profile-points{font-size:36px;font-weight:800;color:var(--ios-orange);margin-top:10px}.profile-points-label{font-size:13px;color:var(--text-secondary);font-weight:500}.detail-back{font-size:17px;color:var(--primary);background:none;border:none;padding:10px 0;cursor:pointer;display:flex;align-items:center;gap:4px}.detail-image{width:100%;border-radius:var(--radius-card);margin-bottom:20px;box-shadow:var(--shadow-sm);max-height:300px;object-fit:cover}.upload-area{background-color:var(--bg-card);border:2px dashed var(--ios-gray4);border-radius:var(--radius-card);padding:30px;text-align:center;color:var(--text-secondary);cursor:pointer}.upload-icon{font-size:32px;margin-bottom:8px}.loading{display:flex;justify-content:center;padding:40px}.spinner{width:32px;height:32px;border:3px solid var(--ios-gray5);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.task-card-title{font-size:17px;font-weight:600}.task-card-desc{font-size:15px;color:var(--text-secondary);margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.task-card-footer{margin-top:12px;font-size:13px;color:var(--text-secondary);display:flex;justify-content:space-between}.task-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px}.review-card-user{display:flex;align-items:center;gap:12px;margin-bottom:12px;padding-bottom:12px;border-bottom:.5px solid var(--separator)}.review-card-user-avatar{width:40px;height:40px;border-radius:50%;background-color:var(--ios-gray5);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px}.my-rank-bar{display:flex;align-items:center;padding:12px 20px;width:calc(100% - 32px);max-width:448px;background-color:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:0 4px 20px #00000026;z-index:50;gap:16px;position:fixed;bottom:80px;left:50%;transform:translate(-50%);border-radius:var(--radius-btn);border:.5px solid var(--glass-border)}.empty-state{padding:60px 20px;opacity:.6;text-align:center}.empty-icon{font-size:48px;margin-bottom:16px}