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auto}}.billing-preset.active{border-color:var(--primary);background:var(--primary-soft);color:var(--primary)}.billing-amount-input-wrap{position:relative}.billing-amount-input{padding-right:36px}.billing-amount-suffix{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--muted);font-weight:600;pointer-events:none}.billing-topup-actions{display:flex;flex-direction:column;gap:8px;margin-top:4px}.billing-topup-actions .btn{width:100%}.billing-children-list{display:flex;flex-direction:column;gap:10px}.billing-child-row{padding:12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface)}.billing-child-foot{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;font-size:.9rem}.billing-child-select{max-width:320px;margin-bottom:var(--space-md)}.product-grid{display:grid;grid-template-columns:1fr;gap:var(--space-md);align-items:stretch}@media(min-width:560px){.product-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:960px){.product-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}}.product-card{display:flex;flex-direction:column;min-height:100%;padding:var(--space-md);border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface)}.product-card-body{flex:1 1 auto}.product-card-title{margin:0 0 8px;font-size:1.05rem}.product-card-desc{margin:0;font-size:.9rem;line-height:1.45}.product-card-price-block{margin-top:var(--space-md);padding-top:var(--space-md);border-top:1px solid var(--border)}.product-card-discount{margin:0 0 8px;font-size:.85rem}.product-card-price{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 8px;margin-bottom:12px}.product-card-price-old{text-decoration:line-through;font-size:.95rem}.product-card-price-main{font-size:1.35rem;font-weight:700}.product-card-price-period{font-size:.9rem}.product-card-btn{width:100%}.page-title-inline{margin:0 0 var(--space-sm);font-size:clamp(1.2rem,3.5vw,1.5rem);font-weight:700}.collapsible-section{padding:0;overflow:hidden}.collapsible-section-toggle{width:100%;display:flex;flex-wrap:wrap;align-items:center;gap:8px;min-height:var(--touch);padding:var(--space-md);border:none;background:transparent;font:inherit;text-align:left;cursor:pointer;color:inherit}.collapsible-section-chevron{flex:0 0 auto;color:var(--muted);font-size:.85rem}.collapsible-section-title{flex:1 1 auto;font-weight:700;font-size:1.05rem}.collapsible-section-hint{flex:1 1 100%;padding-left:1.25rem;font-size:.85rem}.collapsible-section-body{padding:0 var(--space-md) var(--space-md);border-top:1px solid var(--border)}.collapsible-pre{margin:var(--space-md) 0 0;white-space:pre-wrap;font-family:inherit;font-size:.9rem;line-height:1.45}@media(max-width:640px){.page-header-actions{width:100%;flex-direction:column;align-items:stretch}.page-header-actions .select,.page-header-actions .btn{width:100%}}