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768px){.deck-detail-container{padding:var(--spacing-md)}.cards-grid{grid-template-columns:1fr;gap:var(--spacing-md);margin-top:var(--spacing-md);padding:0}.card-item{min-height:250px;max-height:350px}.card-content{padding:16px 16px 45px}.deck-detail-header{margin-bottom:var(--spacing-lg)}.deck-detail-header-actions{flex-wrap:wrap;gap:var(--spacing-xs)}.deck-detail-title{font-size:var(--font-size-2xl)}.edit-card-modal{max-width:100%;max-height:100vh}.modal-body{padding:var(--spacing-md);gap:var(--spacing-md)}.modal-header,.modal-footer{padding:var(--spacing-md)}.edit-field .split-markdown-editor{min-height:200px}}@media (max-width: 480px){.deck-detail-container{padding:var(--spacing-sm)}.cards-grid{gap:var(--spacing-sm)}.card-item{min-height:220px;max-height:320px}.card-content{padding:12px 12px 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var(--banner-height));padding:var(--spacing-xl);background-color:transparent}.payment-card{background:var(--color-bg-white);border-radius:var(--radius-xl);padding:var(--spacing-2xl);text-align:center;max-width:500px;width:100%;box-shadow:var(--shadow-lg);border:1px solid var(--color-border)}.payment-card.success .icon-container .material-icons{color:var(--color-success);font-size:64px;margin-bottom:var(--spacing-md)}.payment-card.cancel .icon-container .material-icons{color:var(--color-error);font-size:64px;margin-bottom:var(--spacing-md)}.payment-card h1{font-size:var(--font-size-2xl);margin-bottom:var(--spacing-md);color:var(--color-text-primary)}.payment-card p{color:var(--color-text-secondary);margin-bottom:var(--spacing-lg);line-height:1.6}.redirect-note{font-size:var(--font-size-sm);font-style:italic;color:var(--color-text-tertiary)}.action-button{background:var(--color-primary);color:#fff;border:none;padding:var(--spacing-md) 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