*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI','Microsoft YaHei',sans-serif}:root{--primary-green:#1a7c3a;--hover-green:#0d5c24;--light-green:#f0f9f3;--bg-color:#f9f9f9;--card-bg:#ffffff;--text-primary:#333;--text-secondary:#666;--border-color:#eee;--price-red:#ef4444;--success-green:#22c55e;--transition:all 0.3s ease;--card-radius:8px;--btn-radius:6px;--shadow:0 5px 15px rgba(0,0,0,0.05);--shadow-hover:0 8px 25px rgba(0,0,0,0.1)}body{line-height:1.6;color:#333;background-color:#f9f9f9}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}header{background:linear-gradient(135deg,#1a7c3a 0,#0d5c24 100%);color:#fff;padding:1rem 0;position:sticky;top:0;z-index:1000;box-shadow:0 2px 10px rgba(0,0,0,.1)}.header-container{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:10px;font-size:1.8rem;font-weight:700}.logo i{font-size:2rem}nav ul{display:flex;list-style:none;gap:1.5rem}nav 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0;font-size:1rem;font-weight:600;color:var(--text-primary);outline:0;min-width:60px}.quantity-input::-webkit-inner-spin-button,.quantity-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.quantity-input[type=number]{-moz-appearance:textfield}.payment-section{margin-bottom:20px}.payment-label{font-size:.95rem;color:var(--text-primary);margin-bottom:8px;font-weight:600;display:flex;align-items:center;gap:8px}.payment-methods{display:flex;gap:8px;flex-wrap:wrap}.payment-method{flex:1;min-width:120px;padding:12px 8px;border:1px solid var(--border-color);border-radius:var(--btn-radius);background:#fff;cursor:pointer;transition:var(--transition);text-align:center;font-size:.85rem;font-weight:600}.payment-method.selected,.payment-method:hover{border-color:var(--primary-green);background:var(--light-green)}.payment-method 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h3{font-size:1.3rem;color:var(--text-primary);margin:25px 0 15px;font-weight:600;display:flex;align-items:center;gap:10px}.description-d-content strong{color:var(--text-primary);padding:0 .2rem}.feature-d-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;margin:20px 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solid var(--border-color);display:flex;flex-direction:column}.product-card:hover{box-shadow:var(--shadow-hover)}.product-card-title{font-size:1.2rem;font-weight:600;margin-bottom:15px;color:var(--text-primary);flex-grow:0;display:flex;align-items:center;gap:8px}.product-card-description{color:var(--text-secondary);margin-bottom:15px;font-size:.95rem;line-height:1.6;flex-grow:1}.product-card-price{color:var(--price-red);font-weight:600;font-size:1.3rem;margin-bottom:15px;flex-grow:0;display:flex;align-items:center;gap:8px}.product-card-action{flex-grow:0}.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.7);z-index:2000;opacity:0;transition:opacity .3s ease}.modal-overlay.active{display:flex;align-items:center;justify-content:center;opacity:1}.modal-content{background:#fff;border-radius:8px;max-width:900px;width:90%;max-height:90vh;overflow-y:auto;transform:scale(.9);transition:transform .3s ease;box-shadow:0 20px 60px rgba(0,0,0,.3)}.modal-overlay.active .modal-content{transform:scale(1)}.modal-header{padding:1.5rem 2rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;background:var(--light-green)}.modal-title{font-weight:600;color:var(--text-primary);gap:10px;font-size:1.5rem;display:flex;align-items:center}.close-btn{font-size:1.5rem;width:40px;height:40px;border:none;background:#f5f5f5;border-radius:50%;cursor:pointer;justify-content:center;color:#666;transition:all .3s;display:flex;text-align:center}.close-btn:hover{background:#e0e0e0;color:#333;transform:rotate(90deg)}.modal-body{padding:2rem;display:grid;grid-template-columns:repeat(2,1fr);gap:30px}.order-summary{background:linear-gradient(135deg,#f8f9fa,#e9ecef);padding:1.5rem;border-radius:var(--card-radius)}.summary-title{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin-bottom:20px;gap:8px;display:flex;align-items:center}.summary-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid rgba(0,0,0,.08)}.summary-row-clear-bt{border-bottom:none}.summary-row:last-child{border-bottom:none;padding-top:15px;margin-top:5px;border-top:2px solid rgba(0,0,0,.1)}.summary-label{width:120px;color:var(--text-secondary);font-size:.9rem}.summary-value{font-weight:600;color:var(--text-primary)}.summary-value.total{font-size:1.5rem;color:var(--price-red)}.payment-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:15px;display:flex;align-items:center;gap:8px}.qr-section{text-align:center;padding:1.5rem}.qr-code{width:200px;height:200px;margin:0 auto 15px;display:flex;align-items:center;justify-content:center}.address-section{background:#fff;border:2px solid #e0e0e0;border-radius:var(--btn-radius);padding:1rem;margin-bottom:15px;position:relative}.address-label{font-size:.85rem;color:var(--text-secondary);margin-bottom:8px;display:flex;align-items:center;gap:5px}.address-value{font-size:.9rem;word-break:break-all;color:var(--text-primary);line-height:1.4;padding-right:40px;width:88%}.copy-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:var(--success-green);color:#fff;border:none;padding:8px 15px;border-radius:var(--btn-radius);font-size:.85rem;cursor:pointer;transition:all .3s;display:flex;align-items:center;gap:5px}.copy-btn:hover{background:#05a050}.copy-btn.copied{background:#4caf50}.countdown-section{background:linear-gradient(135deg,#fee2e2,#fecaca);padding:.5rem;border-radius:var(--card-radius);margin-bottom:25px;text-align:center}.countdown-title{font-size:.9rem;color:#991b1b;font-weight:600;display:flex;align-items:center;justify-content:center;gap:5px}.countdown-timer{font-size:2rem;font-weight:700;color:#dc2626;font-family:'Segoe UI','Microsoft YaHei',sans-serif;letter-spacing:2px}.countdown-timer.warning{animation:blink 1s ease-in-out infinite}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:.3}}.countdown-hint{font-size:.85rem;color:#7f1d1d}@media (max-width:1024px){.product-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.product-d-detail{grid-template-columns:1fr;gap:20px;padding:1.5rem}.feature-d-list{grid-template-columns:1fr}.action-buttons{flex-direction:column}.modal-body{grid-template-columns:1fr;gap:20px}.product-grid{grid-template-columns:1fr}.product-d-description{padding:1.5rem}}@media (max-width:480px){.product-d-title{font-size:1.5rem}.product-d-price{font-size:1.8rem}.spec-d-label{flex:0 0 120px;font-size:.9rem}.spec-d-value{font-size:.9rem}.description-d-title{font-size:1.3rem}.modal-content{width:95%;max-height:95vh;margin:10px}.modal-header{padding:1rem}.modal-title{font-size:1.2rem}.modal-body{padding:1rem}.qr-code{width:160px;height:160px}.address-value{font-size:.8rem}}