:root{--primary-gradient:linear-gradient(135deg,#667eea 0%,#764ba2 100%);--success-gradient:linear-gradient(135deg,#28a745 0%,#20c997 100%);--warning-gradient:linear-gradient(135deg,#ffc107 0%,#fd7e14 100%);--danger-gradient:linear-gradient(135deg,#dc3545 0%,#fd7e14 100%);--light-gradient:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%);--primary-color:#667eea;--success-color:#28a745;--warning-color:#ffc107;--danger-color:#dc3545;--light-color:#f8f9fa;--dark-color:#495057;--muted-color:#6c757d;--border-radius-mi:5px;--border-radius:15px;--border-radius-sm:10px;--border-radius-lg:20px;--box-shadow:0 5px 15px rgba(0,0,0,0.08);--box-shadow-lg:0 8px 25px rgba(0,0,0,0.12);--transition:all 0.3s ease;}*{box-sizing:border-box;}body.login-page,body.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;}.login-page .container{max-width:500px !important;padding:0 20px !important;margin:0 auto !important;}.login-page .col-md-6,.login-page .col-lg-4{max-width:none !important;flex:none !important;width:100% !important;}.login-page .login-container{max-width:500px !important;margin:0 auto !important;background:rgba(255,255,255,0.95) !important;border-radius:10px !important;box-shadow:0 4px 6px rgba(0,0,0,0.1) !important;padding:0 !important;}.register-page .container{max-width:500px !important;padding:0 20px !important;margin:0 auto !important;}.register-page .col-md-6,.register-page .col-lg-4{max-width:none !important;flex:none !important;width:100% !important;}.register-page .register-container{max-width:500px !important;margin:0 auto !important;background:rgba(255,255,255,0.95) !important;border-radius:10px !important;box-shadow:0 4px 6px rgba(0,0,0,0.1) !important;padding:0 !important;}.btn{border-radius:var(--border-radius-mi);padding:12px 20px;font-weight:600;transition:var(--transition);border:none;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;}.btn-primary{background:var(--primary-gradient);color:white;box-shadow:var(--box-shadow);}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--box-shadow);color:white;text-decoration:none;}.btn-success{background:var(--success-gradient);color:white;}.btn-warning{background:var(--warning-gradient);color:white;}.btn-danger{background:var(--danger-gradient);color:white;}.btn-outline-primary{border:2px solid var(--primary-color);color:var(--primary-color);background:transparent;}.btn-outline-primary:hover{background:var(--primary-color);border-color:var(--primary-color);color:white;}.btn-sm{padding:8px 16px;font-size:0.9rem;}.btn-lg{padding:15px 30px;font-size:1.1rem;}.card{background:white;border-radius:var(--border-radius-mi);box-shadow:var(--box-shadow);margin-bottom:20px;overflow:hidden;transition:var(--transition);}.card:hover{transform:translateY(-2px);box-shadow:var(--box-shadow-lg);}.card-header{color:white;padding:15px 20px;font-weight:600;}.card-header[style*="background-color"]{background-color:inherit !important;}.card-body{padding:15px 20px;}.form-control{border-radius:var(--border-radius-sm);border:2px solid #e9ecef;padding:12px 15px;transition:var(--transition);}.form-control:focus{border-color:var(--primary-color);box-shadow:0 0 0 0.2rem rgba(102,126,234,0.25);outline:none;}.status-badge{display:inline-block;padding:6px 12px;border-radius:var(--border-radius-sm);font-size:0.8rem;font-weight:600;margin:2px;}.status-success{background:var(--success-gradient);color:white;}.status-warning{background:var(--warning-gradient);color:white;}.status-danger{background:var(--danger-gradient);color:white;}.status-pending{background:rgba(255,193,7,0.9);color:#ffffff;font-weight:600;}.status-completed{background:rgba(40,167,69,0.9);color:#ffffff;font-weight:600;}.info-box{background:var(--light-gradient);border-radius:var(--border-radius-sm);padding:20px;margin:20px 0;border:1px solid rgba(0,0,0,0.05);box-shadow:0 4px 12px rgba(0,0,0,0.05);}.info-box h5,.info-box h6{color:var(--dark-color);margin-bottom:12px;font-weight:600;}.info-box p{margin:6px 0;color:var(--muted-color);}.info-box strong{color:var(--dark-color);font-weight:600;}.empty-state{text-align:center;padding:60px 20px;color:var(--muted-color);}.empty-state i{font-size:4rem;margin-bottom:20px;opacity:0.5;}.progress-bar{background:var(--success-gradient);border-radius:5px;height:8px;overflow:hidden;margin-bottom:10px;}.progress-text{font-size:0.85rem;color:var(--muted-color);text-align:center;}.breadcrumb{background:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%);padding:12px 20px;margin-bottom:0;border-radius:var(--border-radius-mi);font-size:0.9rem;border:1px solid rgba(0,0,0,0.05);box-shadow:0 2px 8px rgba(0,0,0,0.05);margin-top:20px;min-height:50px;display:flex;align-items:center;}.breadcrumb-item{color:#6c757d;font-weight:500;}.breadcrumb-item + .breadcrumb-item::before{content:">";color:#6c757d;padding:0 0.75rem;font-weight:600;}.breadcrumb-item a{color:#6c757d;text-decoration:none;transition:all 0.3s ease;padding:4px 8px;border-radius:4px;display:inline-flex;align-items:center;}.breadcrumb-item a:hover{color:var(--primary-color);background-color:rgba(102,126,234,0.1);text-decoration:none;transform:translateY(-1px);}.breadcrumb-item.active{color:#495057;font-weight:300;padding:4px 12px;}.breadcrumb-item i{margin-right:0.5rem;font-size:1rem;color:var(--primary-color);}.resource-content-wrapper{display:flex;flex-direction:column;}@media (min-width:769px){.col-md-4 img.img-fluid{width:100% !important;height:auto !important;max-height:345px !important;object-fit:contain !important;border-radius:5px;box-shadow:0 4px 12px rgba(0,0,0,0.1);}.col-md-4 .bg-light{height:400px !important;border-radius:5px;box-shadow:0 4px 12px rgba(0,0,0,0.1);}.col-md-4 .bg-light i{font-size:5rem !important;}}@media (min-width:769px){#promotionModal .modal-dialog{max-width:900px !important;width:90% !important;}#promotionModal .modal-content{border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,0.15);}#promotionModal .modal-header{padding:1.5rem 2rem;border-bottom:1px solid #e9ecef;}#promotionModal .modal-title{font-size:1.3rem;font-weight:600;color:#495057;}#promotionModal .modal-body{padding:2rem;}#promotionModal .modal-footer{padding:1.5rem 2rem;border-top:1px solid #e9ecef;}#promotionModal h6{font-size:1.1rem;font-weight:600;margin-bottom:1rem;color:#495057;}#promotionModal .input-group{margin-bottom:1.5rem;}#promotionModal .form-control{padding:0.75rem 1rem;font-size:1rem;border-radius:5px;}#promotionModal .btn{padding:0.75rem 1.5rem;font-size:1rem;border-radius:5px;}#promotionModal .alert{padding:1rem 1.25rem;border-radius:5px;font-size:1rem;}#promotionModal .poster-image{max-width:250px !important;height:auto;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.1);}#promotionModal .text-muted.small{font-size:0.95rem;margin-top:1rem;}}@media (min-width:769px){.resource-card{margin-bottom:20px;}.resource-card .card-body{padding:0.1rem 0.1rem;height:2.5rem;}}@media (max-width:768px){.resource-card{margin-bottom:12px;}.purchase-promotion-section .card{margin-bottom:15px;}.purchase-promotion-section .card-body{padding:1rem;}.purchase-promotion-section .btn{font-size:0.9rem;padding:0.75rem 1.5rem;}.col-md-8 h2{text-align:center;font-size:1.4rem;line-height:1.3;margin-bottom:1rem;}}footer{background:#f8f9fa !important;border-top:1px solid #e9ecef;margin-top:50px;}footer .text-muted{color:#6c757d !important;font-size:0.9rem;}footer .text-muted p{margin-bottom:8px;line-height:1.5;}footer .text-muted small{font-size:0.85rem !important;color:#6c757d !important;}@keyframes fadeInUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}@keyframes pulse{0%{transform:scale(1);opacity:1;}100%{transform:scale(1.5);opacity:0;}}@keyframes slideDown{from{opacity:0;transform:translateY(-10px);}to{opacity:1;transform:translateY(0);}}@keyframes float{0%,100%{transform:translateY(0px) rotate(0deg);}50%{transform:translateY(-20px) rotate(180deg);}}@keyframes floatUp{0%,100%{transform:translateY(0px) scale(1);opacity:0.3;}50%{transform:translateY(-30px) scale(1.1);opacity:0.6;}}body{background:#f8f9fa;}.resource-card{border:1px solid #e9ecef;border-radius:var(--border-radius-mi);overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.08);background:white;margin-bottom:15px;}.resource-card:hover{box-shadow:0 4px 15px rgba(0,0,0,0.12);border-color:var(--custom-color,#007bff);}@media (min-width:769px){.resource-image{width:100%;aspect-ratio:1 / 1;object-fit:cover;border-radius:5px 5px 0 0;}.resource-image-placeholder{width:100%;aspect-ratio:1 / 1;background:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%);display:flex;align-items:center;justify-content:center;border-radius:5px 5px 0 0;}.resource-image-placeholder i{font-size:4rem;color:#adb5bd;}@media (min-width:1200px){.resource-image-placeholder i{font-size:5rem;}}@media (min-width:1600px){.resource-image-placeholder i{font-size:6rem;}}}@media (max-width:768px){.resource-image{width:100%;aspect-ratio:1 / 1;object-fit:cover;border-radius:5px 5px 0 0;}.resource-image-placeholder{width:100%;aspect-ratio:1 / 1;background:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%);display:flex;align-items:center;justify-content:center;border-radius:5px 5px 0 0;}.resource-image-placeholder i{font-size:2.5rem;color:#adb5bd;}.resource-card .card-body{padding:0.1rem 0.1rem;height:20px;}.resource-card .card-title{font-size:0.75rem;font-weight:400;line-height:1.3;margin-bottom:0.2rem;text-align:center;display:flex;align-items:center;justify-content:center;min-height:2rem;padding:0.3rem 0.5rem;}}.resource-card a{color:inherit;text-decoration:none;}.resource-card a:hover{color:inherit;text-decoration:none;}@media (min-width:769px){.resource-card .card-title{font-size:0.9rem;font-weight:500;line-height:1.4;margin-bottom:0.5rem;color:#495057;text-align:center;display:flex;align-items:center;justify-content:center;min-height:2.5rem;padding:0.1rem 0.1rem;}}.resource-card:hover .card-title{color:var(--custom-color,#007bff) !important;}body{background:#f8f9fa;margin:0;padding:0;}.main-container{display:flex;min-height:100vh;}.sidebar{width:280px;background:var(--custom-color,linear-gradient(135deg,#667eea 0%,#764ba2 100%));color:white;position:fixed;height:100vh;overflow-y:auto;z-index:1000;transition:transform 0.3s ease;}.sidebar-header{padding:20px;border-bottom:1px solid rgba(255,255,255,0.1);text-align:center;}.sidebar-header h4{margin:0;font-size:1.2rem;font-weight:600;}.sidebar-header p{margin:5px 0 0 0;font-size:0.9rem;opacity:0.8;}.sidebar-menu{padding:20px 0;}.menu-item{display:block;padding:15px 25px;color:white;text-decoration:none;transition:all 0.3s ease;border-left:3px solid transparent;position:relative;}.menu-item:hover{background:rgba(255,255,255,0.1);color:white;text-decoration:none;border-left-color:rgba(255,255,255,0.5);}.menu-item.active{background:rgba(255,255,255,0.15);border-left-color:white;}.menu-item i{width:20px;margin-right:12px;font-size:1.1rem;}.menu-item span{font-size:0.95rem;font-weight:500;}.main-content{flex:1;margin-left:280px;padding:20px;transition:margin-left 0.3s ease;}.content-header{background:white;border-radius:5px;box-shadow:0 5px 15px rgba(0,0,0,0.08);padding:20px;margin-bottom:20px;}.content-header h3{margin:0;color:#495057;font-weight:600;}.content-header p{margin:5px 0 0 0;color:#6c757d;font-size:0.9rem;}.mobile-menu-btn{display:none;position:fixed;top:20px;left:20px;z-index:1001;background:var(--custom-color,#667eea);color:white;border:none;border-radius:50%;width:50px;height:50px;font-size:1.2rem;box-shadow:0 4px 12px var(--custom-color-shadow,rgba(102,126,234,0.4));transition:all 0.3s ease;}.mobile-menu-btn:hover{transform:scale(1.05);}.mobile-menu-btn:active{transform:scale(0.95);}.sidebar-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);z-index:999;}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-bottom:30px;}.stats-card{background:white;border-radius:5px;box-shadow:0 5px 15px rgba(0,0,0,0.08);padding:25px;text-align:center;transition:transform 0.3s ease,box-shadow 0.3s ease;position:relative;overflow:hidden;}.stats-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--custom-color,linear-gradient(90deg,#667eea,#764ba2));}.stats-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,0.15);}.stats-icon{font-size:2.5rem;margin-bottom:15px;color:var(--custom-color,#667eea);}.stats-number{font-size:2.2rem;font-weight:bold;color:#495057;margin-bottom:8px;}.stats-label{font-size:1rem;color:#6c757d;font-weight:500;margin-bottom:5px;}.stats-desc{font-size:0.85rem;color:#adb5bd;line-height:1.4;}.quick-actions{background:white;border-radius:5px;box-shadow:0 5px 15px rgba(0,0,0,0.08);padding:25px;margin-bottom:30px;}.quick-actions h5{margin-bottom:20px;color:#495057;font-weight:600;}.action-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;}.action-btn{display:flex;align-items:center;padding:15px 20px;background:var(--custom-color,linear-gradient(135deg,#667eea 0%,#764ba2 100%));color:white;text-decoration:none;border-radius:5px;transition:all 0.3s ease;font-weight:500;}.action-btn:hover{color:white;text-decoration:none;transform:translateY(-2px);box-shadow:0 8px 20px var(--custom-color-shadow,rgba(102,126,234,0.3));}.action-btn i{font-size:1.2rem;margin-right:10px;}.promotion-section{background:white;border-radius:5px;box-shadow:0 5px 15px rgba(0,0,0,0.08);padding:25px;margin-bottom:30px;}.promotion-section h4{margin:0 0 20px 0;color:#495057;font-weight:600;}.promotion-url-container{background:#f8f9fa;border-radius:5px;padding:15px;margin-bottom:15px;border:1px solid #e9ecef;}.promotion-url{font-family:'Courier New',monospace;font-size:0.9rem;color:#495057;word-break:break-all;margin:0;}.promotion-actions{display:flex;gap:10px;flex-wrap:wrap;}.btn-copy,.btn-share{background:var(--custom-color,#667eea);color:white;border:none;border-radius:5px;padding:8px 16px;font-size:0.85rem;cursor:pointer;transition:all 0.3s ease;}.btn-copy:hover,.btn-share:hover{background:#5a6fd8;transform:translateY(-1px);}.qr-section{background:white;border-radius:5px;box-shadow:0 5px 15px rgba(0,0,0,0.08);padding:25px;text-align:center;}.qr-section h4{margin:0 0 20px 0;color:#495057;font-weight:600;}.qr-code{max-width:200px;margin:0 auto 15px auto;}.qr-code img{width:100%;height:auto;border-radius:5px;}.qr-desc{color:#6c757d;font-size:0.9rem;margin:0;}.poster-section{background:white;border-radius:5px;box-shadow:0 5px 15px rgba(0,0,0,0.08);padding:25px;text-align:center;}.poster-section h4{margin:0 0 20px 0;color:#495057;font-weight:600;}.poster-preview{max-width:300px;margin:0 auto 15px auto;border-radius:5px;overflow:hidden;box-shadow:0 4px 12px rgba(0,0,0,0.1);}.poster-preview img{width:100%;height:auto;display:block;}.poster-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;}.btn-download{background:#28a745;color:white;border:none;border-radius:8px;padding:8px 16px;font-size:0.85rem;cursor:pointer;transition:all 0.3s ease;}.btn-download:hover{background:#218838;transform:translateY(-1px);}.order-card{background:white;border-radius:var(--border-radius-mi);box-shadow:var(--box-shadow);margin-bottom:20px;overflow:hidden;transition:var(--transition);}.order-card:hover{transform:translateY(-2px);box-shadow:var(--box-shadow-lg);}.order-header{background:var(--primary-gradient);color:white;padding:15px 20px;display:flex;justify-content:space-between;align-items:center;}.order-title{font-size:1.1rem;font-weight:600;margin:0;}.order-status{padding:4px 12px;border-radius:5px;font-size:0.8rem;font-weight:500;}.order-body{padding:20px;}.order-info{margin-bottom:15px;}.order-info-row{display:flex;justify-content:space-between;margin-bottom:8px;font-size:0.9rem;}.order-info-label{color:var(--muted-color);font-weight:500;}.order-info-value{color:var(--dark-color);word-break:break-all;word-wrap:break-word;max-width:200px;}.order-info-value.order-no{font-family:'Courier New',monospace;font-size:0.85rem;background:#f8f9fa;padding:4px 8px;border-radius:4px;border:1px solid #e9ecef;word-break:break-all;word-wrap:break-word;max-width:100%;}.promotion-progress{background:#e9ecef;border-radius:5px;height:8px;overflow:hidden;margin-bottom:10px;}.promotion-progress-bar{height:100%;background:var(--success-gradient);transition:width 0.3s ease;}body.login-page,body.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;}.login-page,.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;}@media (min-width:600px){body.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;border:5px solid red !important;}.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;}.register-page .container{max-width:500px !important;padding:0 20px !important;background:rgba(255,255,255,0.1) !important;border:3px solid blue !important;}}@media (min-width:600px){body.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;border:5px solid red !important;}.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;}.register-page .container{max-width:500px !important;padding:0 20px !important;background:rgba(255,255,255,0.1) !important;border:3px solid blue !important;}}@media (min-width:768px){body.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;border:5px solid red !important;}.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;}.register-page .container{max-width:500px !important;padding:0 20px !important;background:rgba(255,255,255,0.1) !important;border:3px solid blue !important;}}@media (min-width:1024px){body.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;border:5px solid red !important;}.register-page{background:var(--primary-gradient) !important;min-height:100vh !important;display:flex !important;align-items:center !important;}.register-page .container{max-width:500px !important;padding:0 20px !important;background:rgba(255,255,255,0.1) !important;border:3px solid blue !important;}}.login-container,.register-container{background:white;border-radius:var(--border-radius);box-shadow:0 15px 35px rgba(0,0,0,0.1);overflow:hidden;}.login-header,.register-header{color:white;padding:2rem;text-align:center;}.login-body,.register-body{padding:2rem;}.btn-login,.btn-register{background:var(--primary-gradient);border:none;border-radius:var(--border-radius-sm);padding:12px;font-weight:600;text-transform:uppercase;letter-spacing:1px;transition:var(--transition);}.btn-login:hover,.btn-register:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,0.4);}.captcha-container{display:flex;gap:10px;align-items:center;}.captcha-container .form-control{flex:1;}.captcha-image{border:1px solid #dee2e6;border-radius:5px;cursor:pointer;}.captcha-code{background:#f8f9fa;border:2px solid #e9ecef;border-radius:var(--border-radius-sm);padding:10px 15px;font-family:'Courier New',monospace;font-weight:bold;color:var(--primary-color);letter-spacing:2px;min-width:100px;text-align:center;cursor:pointer;}.nav-links{text-align:center;margin-top:1rem;}.nav-links a{color:var(--primary-color);text-decoration:none;margin:0 10px;}.nav-links a:hover{text-decoration:underline;}.parent-info{background:linear-gradient(135deg,#e8f5e8 0%,#d4edda 100%);border:1px solid #c3e6cb;border-radius:var(--border-radius-sm);padding:15px;margin-bottom:20px;color:#155724;font-size:0.9rem;display:flex;align-items:center;gap:10px;}.parent-info i{color:#28a745;font-size:1.1rem;}.forgot-password-content{padding:20px 0;}.icon-container{display:flex;justify-content:center;align-items:center;}.contact-info{background:#f8f9fa;border-radius:var(--border-radius-sm);padding:20px;margin:20px 0;}.contact-item{display:flex;align-items:center;gap:10px;margin-bottom:10px;}.contact-item:last-child{margin-bottom:0;}.contact-label{font-weight:600;color:#495057;min-width:80px;}.contact-value{font-weight:500;color:var(--primary-color);word-break:break-all;}.tips{background:#e9ecef;border-radius:var(--border-radius-sm);padding:15px;margin-top:20px;}.tips i{color:#6c757d;margin-right:5px;}@media (min-width:768px){.login-page .container,.register-page .container{max-width:500px !important;padding:0 20px;}.login-container,.register-container{margin:2rem auto;max-width:450px;}.login-page .col-md-6,.login-page .col-lg-4,.register-page .col-md-6,.register-page .col-lg-4{max-width:none !important;flex:none !important;width:100% !important;}.login-header,.register-header{padding:2.5rem 2rem;}.login-header h3,.register-header h3{font-size:1.8rem;margin-bottom:0.5rem;}.login-body,.register-body{padding:2.5rem 2rem;}.form-group{margin-bottom:1.5rem;}.form-group label{font-size:1rem;font-weight:600;margin-bottom:0.75rem;}.form-control{padding:0.875rem 1rem;font-size:1rem;border-radius:5px;border:2px solid #e9ecef;transition:all 0.3s ease;}.form-control:focus{border-color:var(--primary-color);box-shadow:0 0 0 0.2rem rgba(0,123,255,0.25);}.btn-login,.btn-register{padding:1rem 2rem;font-size:1.1rem;font-weight:700;border-radius:5px;margin-top:1rem;}.captcha-container{gap:15px;}.captcha-code{padding:12px 18px;font-size:1.1rem;min-width:120px;}.nav-links{margin-top:2rem;}.nav-links a{font-size:1rem;margin:0 15px;}.parent-info{padding:20px;font-size:1rem;margin-bottom:25px;}.parent-info i{font-size:1.2rem;}.modal-dialog{max-width:500px;}.modal-header{padding:1.5rem 2rem;}.modal-body{padding:2rem;}.modal-footer{padding:1.5rem 2rem;}.contact-info{padding:25px;margin:25px 0;}.contact-item{margin-bottom:15px;}.contact-label{font-size:1rem;min-width:100px;}.contact-value{font-size:1.1rem;}.tips{padding:20px;font-size:1rem;}}@media (min-width:1200px){.login-page .container,.register-page .container{max-width:600px !important;}.login-container,.register-container{max-width:550px;}.login-header,.register-header{padding:3rem 2.5rem;}.login-header h3,.register-header h3{font-size:2rem;}.login-body,.register-body{padding:3rem 2.5rem;}.modal-dialog{max-width:600px;}.modal-header{padding:2rem 2.5rem;}.modal-body{padding:2.5rem;}.modal-footer{padding:2rem 2.5rem;}.contact-info{padding:30px;margin:30px 0;}.contact-label{font-size:1.1rem;min-width:120px;}.contact-value{font-size:1.2rem;}.tips{padding:25px;font-size:1.1rem;}}.icon-container{animation:pulse 2s infinite;}.contact-info{background:#f8f9fa;border-radius:var(--border-radius-sm);padding:20px;margin:20px 0;}.contact-item{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;}.contact-label{font-weight:600;color:var(--dark-color);}.contact-value{font-weight:bold;color:#1aad19;font-size:1.1rem;letter-spacing:1px;}.copy-btn{border-radius:5px;padding:5px 10px;transition:var(--transition);}.copy-btn:hover{transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,123,255,0.3);}.tips{background:#e3f2fd;border:1px solid #2196f3;border-radius:5px;padding:15px;text-align:left;}.parent-info{background:#e3f2fd;border:1px solid #2196f3;border-radius:var(--border-radius-sm);padding:10px;margin-bottom:20px;text-align:center;}.payment-page{background:var(--primary-gradient);min-height:100vh;font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:0;}.payment-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:10px;}.payment-card{background:rgba(255,255,255,0.98);backdrop-filter:blur(15px);border-radius:5px;box-shadow:0 30px 60px rgba(0,0,0,0.2);padding:30px;max-width:500px;width:100%;border:1px solid rgba(255,255,255,0.3);position:relative;overflow:hidden;}.payment-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--primary-gradient);}.payment-header{text-align:center;margin-bottom:30px;}.payment-header h1{font-size:2rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px;}.payment-header p{color:var(--muted-color);font-size:1rem;margin:0;}.product-info{background:var(--light-gradient);border-radius:var(--border-radius-sm);padding:20px;margin-bottom:25px;border:1px solid rgba(0,0,0,0.05);box-shadow:0 4px 12px rgba(0,0,0,0.05);}.product-info h5{color:var(--dark-color);margin-bottom:12px;font-weight:600;font-size:1.1rem;}.product-info p{margin:6px 0;font-size:0.95rem;color:var(--muted-color);line-height:1.4;}.product-info strong{color:var(--dark-color);font-weight:600;}.price-display{text-align:center;margin:20px 0;padding:20px;background:linear-gradient(135deg,#e8f5e8 0%,#d4edda 100%);border-radius:var(--border-radius-mi);border:2px solid var(--success-color);}.price-display .price{font-size:2.5rem;font-weight:700;color:var(--success-color);margin-bottom:5px;text-shadow:0 2px 4px rgba(40,167,69,0.2);}.price-display .label{color:#155724;font-size:1rem;font-weight:500;}.payment-methods{margin-bottom:30px;}.payment-method-option{padding:18px;border:2px solid #e9ecef;border-radius:var(--border-radius-mi);margin-bottom:12px;cursor:pointer;transition:var(--transition);background:white;position:relative;overflow:hidden;}.payment-method-option::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:var(--primary-color);transform:scaleY(0);transition:transform 0.3s ease;}.payment-method-option:hover{border-color:var(--primary-color);box-shadow:0 8px 25px rgba(102,126,234,0.15);transform:translateY(-2px);}.payment-method-option:hover::before{transform:scaleY(1);}.payment-method-option.selected{border-color:var(--primary-color);background:linear-gradient(135deg,#f8f9ff 0%,#e6f0ff 100%);box-shadow:0 8px 25px rgba(102,126,234,0.2);transform:translateY(-2px);}.payment-method-option.selected::before{transform:scaleY(1);}.payment-method-option input[type="radio"]{margin-right:15px;transform:scale(1.2);}.payment-method-option label{cursor:pointer;margin:0;font-weight:600;color:var(--dark-color);}.payment-method-option .method-icon{font-size:1.5rem;margin-right:10px;color:var(--primary-color);}.sub-methods{margin-top:15px;padding:15px;background:rgba(102,126,234,0.05);border-radius:var(--border-radius-mi);border:1px solid rgba(102,126,234,0.1);display:none;animation:slideDown 0.3s ease;}.sub-methods.show{display:block;}.sub-method-option{padding:12px 15px;border:1px solid rgba(102,126,234,0.2);border-radius:5px;margin-bottom:8px;cursor:pointer;transition:var(--transition);background:white;position:relative;}.sub-method-option:hover{border-color:var(--primary-color);background:rgba(102,126,234,0.05);transform:translateX(5px);}.sub-method-option.selected{border-color:var(--primary-color);background:linear-gradient(135deg,#f8f9ff 0%,#e6f0ff 100%);box-shadow:0 4px 12px rgba(102,126,234,0.15);}.sub-method-option:last-child{margin-bottom:0;}.btn-pay{background:var(--primary-gradient);border:none;border-radius:var(--border-radius-mi);padding:15px 30px;font-size:1.1rem;font-weight:600;color:white;width:100%;transition:var(--transition);box-shadow:0 8px 25px rgba(102,126,234,0.3);position:relative;overflow:hidden;}.btn-pay::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:left 0.5s;}.btn-pay:hover{transform:translateY(-2px);box-shadow:0 12px 35px rgba(102,126,234,0.4);}.btn-pay:hover::before{left:100%;}.btn-pay:active{transform:translateY(0);}.btn-pay:disabled{background:var(--muted-color);cursor:not-allowed;transform:none;box-shadow:none;}.btn-back{background:var(--muted-color);border:none;border-radius:var(--border-radius-mi);padding:15px 30px;font-size:1rem;font-weight:500;color:white;text-decoration:none;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;}.btn-back:hover{background:#5a6268;transform:translateY(-2px);box-shadow:0 8px 25px rgba(108,117,125,0.3);color:white;text-decoration:none;}.btn-back:active{transform:translateY(0);}.payment-success-page{background:var(--primary-gradient);min-height:100vh;display:flex;align-items:center;justify-content:center;font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;position:relative;overflow:hidden;}.payment-success-page::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');animation:float 20s ease-in-out infinite;}.result-card{background:rgba(255,255,255,0.98);backdrop-filter:blur(15px);border-radius:5px;box-shadow:0 30px 60px rgba(0,0,0,0.2);padding:40px 30px;text-align:center;max-width:500px;width:90%;position:relative;z-index:1;border:1px solid rgba(255,255,255,0.3);margin:20px;}.result-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--success-gradient);border-radius:5px 5px 0 0;}.success-icon{font-size:5rem;color:var(--success-color);margin-bottom:25px;position:relative;display:inline-block;}.success-icon::after{content:'';position:absolute;top:50%;left:50%;width:120%;height:120%;border:3px solid rgba(40,167,69,0.3);border-radius:50%;transform:translate(-50%,-50%);animation:pulse 2s ease-in-out infinite;}.error-icon{font-size:5rem;color:var(--danger-color);margin-bottom:25px;}.success-title{font-size:2.5rem;font-weight:700;margin-bottom:15px;background:var(--success-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}.error-title{font-size:2.5rem;font-weight:700;margin-bottom:15px;background:var(--danger-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}.subtitle{font-size:1.2rem;color:var(--muted-color);margin-bottom:30px;font-weight:400;}.payment-info{background:var(--light-gradient);border-radius:var(--border-radius-mi);padding:25px;margin:25px 0;border:1px solid rgba(0,0,0,0.05);box-shadow:0 5px 15px rgba(0,0,0,0.05);}.payment-info h6{color:var(--dark-color);margin-bottom:15px;font-weight:600;font-size:18px;}.payment-info p{margin:8px 0;font-size:15px;color:var(--muted-color);}.payment-info strong{color:var(--dark-color);font-weight:600;}.countdown{font-size:18px;font-weight:600;color:var(--primary-color);margin-top:15px;}.action-buttons{margin-top:30px;}.action-buttons .btn{margin:5px 10px;min-width:150px;}.floating-elements{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none;z-index:0;}.floating-elements::before,.floating-elements::after{content:'';position:absolute;width:100px;height:100px;background:rgba(255,255,255,0.1);border-radius:50%;animation:floatUp 15s ease-in-out infinite;}.floating-elements::before{top:20%;left:10%;animation-delay:0s;}.floating-elements::after{top:60%;right:10%;animation-delay:7s;}@media (min-width:769px){.container{max-width:1200px;padding:0 20px;}.navbar-nav.d-flex.flex-row .nav-item{margin-right:30px;}.navbar-nav.d-flex.flex-row .nav-link{padding:12px 20px;font-size:1rem;font-weight:500;}.navbar-nav.d-flex.flex-row .nav-item:first-child{margin-left:0;}.navbar-nav.d-flex.flex-row .nav-item:last-child{margin-right:0;}@media (min-width:1200px){.container{max-width:1400px;padding:0 30px;}.navbar-nav.d-flex.flex-row .nav-item{margin-right:40px;}.navbar-nav.d-flex.flex-row .nav-link{padding:15px 25px;font-size:1.1rem;}}@media (min-width:1600px){.container{max-width:1600px;padding:0 40px;}.navbar-nav.d-flex.flex-row .nav-item{margin-right:50px;}.navbar-nav.d-flex.flex-row .nav-link{padding:18px 30px;font-size:1.2rem;}}}@media (max-width:768px){.navbar-nav.d-flex.flex-row .nav-item{margin-bottom:0.25rem;border-bottom:none;}.navbar-nav.d-flex.flex-row .nav-item .nav-link{padding:0.4rem 0.5rem;font-size:0.85rem;white-space:nowrap;text-align:center;}.navbar-nav.d-flex.flex-row .nav-item .nav-link i{font-size:0.9rem;margin-right:0.25rem;}.navbar-nav.d-flex.flex-row .nav-item .btn{padding:0.2rem 0.4rem;font-size:0.75rem;}.navbar .container{padding-left:0.5rem;padding-right:0.5rem;}.navbar-brand{font-size:1rem;padding:0.25rem 0;}.navbar-nav.d-flex.flex-row .nav-item.mr-2{margin-right:0.25rem !important;}.sidebar{transform:translateX(-100%);width:280px;}.sidebar.open{transform:translateX(0);}.main-content{margin-left:0;padding:15px;}.stats-grid{grid-template-columns:1fr;gap:15px;}.action-grid{grid-template-columns:1fr;}.promotion-actions{justify-content:center;}.poster-actions{flex-direction:column;}.stats-card{padding:20px;}.stats-icon{font-size:2rem;}.stats-number{font-size:1.8rem;}.mobile-menu-btn{display:flex;align-items:center;justify-content:center;}.sidebar-overlay.show{display:block;}.order-card{margin-bottom:15px;}.order-body{padding:15px;}.login-container,.register-container{margin:1rem;border-radius:var(--border-radius-mi);}.login-header,.login-body,.register-header,.register-body{padding:1.5rem;}.captcha-container{flex-direction:column;gap:15px;}.captcha-code{min-width:auto;width:100%;}.modal-dialog{margin:10px;}.forgot-password-content{padding:15px 0;}.icon-container i{font-size:3rem !important;}.contact-item{flex-direction:column;gap:15px;}.contact-value{font-size:1.2rem;word-break:break-all;}.tips{font-size:0.9rem;padding:12px;}.payment-card{margin:10px;padding:20px;border-radius:var(--border-radius-mi);}.payment-header h1{font-size:1.5rem;}.price-display .price{font-size:2rem;}.payment-method-option{padding:15px;}.btn-pay,.btn-back{padding:12px 25px;font-size:1rem;}.result-card{padding:30px 20px;margin:20px;}.success-title,.error-title{font-size:2rem;}.success-icon,.error-icon{font-size:4rem;}.action-buttons .btn{margin:5px;min-width:120px;}}