* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #f472b6;
    --bg: #f8fafc;
    --surface: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --success: #22c55e;
    --warning: #f59e0b;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.app-header {
    text-align: center;
    padding: 48px 0 32px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.logo svg {
    color: var(--primary);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 400;
}

/* Input Section */
.input-section {
    margin-bottom: 32px;
}

.input-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.input-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.user-input {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: inherit;
    resize: vertical;
    transition: var(--transition);
    background: var(--bg);
}

.user-input:focus {
    outline: none;
    border-color: var(--primary-light);
    background: var(--surface);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.user-input::placeholder {
    color: var(--text-muted);
}

.input-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 16px;
}

.btn-clear {
    padding: 10px 24px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-clear:hover {
    background: var(--border-light);
    color: var(--text-primary);
}

.btn-search {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 28px;
    border: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-search:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-search:active {
    transform: translateY(0);
}

.btn-search:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.quick-tags {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
    flex-wrap: wrap;
}

.tags-label {
    font-size: 13px;
    color: var(--text-muted);
}

.tag {
    padding: 6px 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.tag:hover {
    border-color: var(--primary-light);
    color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

/* Loading Section */
.loading-section {
    padding: 48px 0;
    text-align: center;
}

.loading-animation {
    max-width: 400px;
    margin: 0 auto;
}

.ai-brain {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brain-icon {
    color: var(--primary);
    z-index: 2;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--primary);
    opacity: 0;
    animation: pulse-ring 2s infinite;
}

.pulse-ring:nth-child(2) {
    animation-delay: 0.4s;
}

.pulse-ring:nth-child(3) {
    animation-delay: 0.8s;
}

@keyframes pulse-ring {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

.loading-text {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 32px;
}

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.step {
    padding: 12px 16px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    transition: var(--transition);
    opacity: 0.5;
}

.step.active {
    opacity: 1;
    border-color: var(--primary-light);
    background: rgba(99, 102, 241, 0.05);
    color: var(--primary);
    font-weight: 500;
}

.step.completed {
    opacity: 1;
    border-color: var(--success);
    color: var(--success);
}

.step.completed::after {
    content: ' ✓';
}

/* Results Section */
.results-section {
    padding-bottom: 48px;
}

.filter-summary {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.filter-title {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.filter-title svg {
    color: var(--success);
}

.btn-edit {
    padding: 6px 16px;
    border: 1px solid var(--primary-light);
    background: transparent;
    color: var(--primary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-edit:hover {
    background: rgba(99, 102, 241, 0.05);
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(99, 102, 241, 0.08);
    color: var(--primary-dark);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

.filter-tag .tag-label {
    color: var(--text-muted);
    font-weight: 400;
}

/* Toolbar */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 0 4px;
}

.result-count {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.sort-options {
    display: flex;
    gap: 4px;
}

.sort-btn {
    padding: 6px 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.sort-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

.sort-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.product-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.product-image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 100%;
    overflow: hidden;
    background: var(--bg);
}

.product-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image {
    transform: scale(1.05);
}

.platform-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    color: white;
    z-index: 2;
}

.platform-badge.taobao {
    background: #ff5000;
}

.platform-badge.jd {
    background: #e4393c;
}

.platform-badge.pdd {
    background: #e02e24;
}

.product-info {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 42px;
}

.product-price-row {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 8px;
}

.price-symbol {
    font-size: 13px;
    color: var(--secondary);
    font-weight: 500;
}

.price-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--secondary);
}

.price-original {
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: line-through;
}

.product-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 10px;
    font-size: 12px;
    color: var(--text-muted);
}

.product-reason {
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    line-height: 1.5;
    margin-bottom: 12px;
    flex: 1;
}

.product-reason strong {
    color: var(--primary);
}

.product-actions {
    display: flex;
    gap: 8px;
}

.btn-buy {
    flex: 1;
    padding: 10px;
    border: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    text-decoration: none;
}

.btn-buy:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-detail {
    padding: 10px 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-detail:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

/* Load More */
.load-more-container {
    text-align: center;
    margin-top: 32px;
}

.btn-load-more {
    padding: 12px 32px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-load-more:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 64px 20px;
    color: var(--text-muted);
}

.empty-state svg {
    margin-bottom: 16px;
    color: var(--border);
}

.empty-state h3 {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    margin-bottom: 24px;
}

.btn-retry {
    padding: 10px 28px;
    border: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-retry:hover {
    opacity: 0.9;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    z-index: 10;
}

.modal-close:hover {
    background: var(--border);
    color: var(--text-primary);
}

.modal-body {
    padding: 0;
}

.modal-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.modal-info {
    padding: 24px;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}

.modal-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 16px;
}

.modal-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.meta-item {
    font-size: 13px;
    color: var(--text-secondary);
}

.meta-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.modal-reason {
    background: var(--bg);
    padding: 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.modal-reason h4 {
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--primary);
}

.modal-reason p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    gap: 12px;
}

.modal-actions .btn-buy {
    flex: 1;
    padding: 14px;
    font-size: 15px;
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 24px 0;
    border-top: 1px solid var(--border-light);
    color: var(--text-muted);
    font-size: 13px;
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card {
    animation: fadeInUp 0.4s ease forwards;
}

/* Detail Section (Full Page) */
.detail-section {
    background: var(--bg);
    min-height: 100vh;
    padding-bottom: 100px;
}

.detail-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--surface);
    border-bottom: 1px solid var(--border-light);
    padding: 12px 20px;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--radius-sm);
}

.btn-back:hover {
    background: var(--border-light);
}

.btn-back svg {
    color: var(--text-secondary);
}

.detail-body {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px 20px;
}

.detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.detail-gallery {
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.detail-main-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.detail-info {
    padding: 32px;
    display: flex;
    flex-direction: column;
}

.detail-platform {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: white;
    margin-bottom: 12px;
    align-self: flex-start;
}

.detail-platform.taobao { background: #ff5000; }
.detail-platform.jd { background: #e4393c; }
.detail-platform.pdd { background: #e02e24; }

.detail-title {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.detail-price-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 20px;
}

.detail-price {
    font-size: 36px;
    font-weight: 700;
    color: var(--secondary);
}

.detail-price .symbol {
    font-size: 20px;
    font-weight: 500;
}

.detail-original-price {
    font-size: 16px;
    color: var(--text-muted);
    text-decoration: line-through;
}

.detail-discount {
    padding: 2px 8px;
    background: var(--secondary);
    color: white;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.detail-meta-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--bg);
    border-radius: var(--radius-md);
}

.detail-meta-item {
    font-size: 14px;
    color: var(--text-secondary);
}

.detail-meta-item strong {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 2px;
}

.detail-reason {
    background: rgba(99, 102, 241, 0.06);
    border-left: 3px solid var(--primary);
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: 24px;
}

.detail-reason h4 {
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 8px;
}

.detail-reason p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.detail-tag {
    padding: 4px 12px;
    background: var(--border-light);
    color: var(--text-secondary);
    border-radius: 20px;
    font-size: 12px;
}

/* Spec selectors on order page */
.spec-section {
    margin-bottom: 20px;
}

.spec-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.spec-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.spec-option {
    padding: 8px 16px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.spec-option:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

.spec-option.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
    color: var(--primary);
    font-weight: 500;
}

/* Quantity selector */
.quantity-section {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.quantity-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.quantity-control {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.quantity-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg);
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.quantity-btn:hover {
    background: var(--border-light);
    color: var(--text-primary);
}

.quantity-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.quantity-input {
    width: 50px;
    height: 36px;
    border: none;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--surface);
}

/* Total price on order page */
.total-price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-top: 1px solid var(--border-light);
    margin-bottom: 16px;
}

.total-price-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.total-price-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary);
}

/* Action bar */
.detail-action-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    border-top: 1px solid var(--border-light);
    padding: 12px 20px;
    display: flex;
    gap: 12px;
    justify-content: center;
    z-index: 50;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.04);
}

.detail-action-bar .btn-buy {
    flex: 0 1 400px;
    padding: 14px 28px;
    font-size: 15px;
    border-radius: var(--radius-sm);
    border: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.detail-action-bar .btn-buy:hover {
    opacity: 0.92;
    transform: translateY(-1px);
}

.detail-action-bar .btn-back-list {
    flex: 0 1 200px;
    padding: 14px 28px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.detail-action-bar .btn-back-list:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

/* Order success screen */
.order-success {
    text-align: center;
    padding: 48px 20px;
    animation: fadeInUp 0.5s ease;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.success-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.success-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.success-info {
    max-width: 400px;
    margin: 0 auto 32px;
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: left;
}

.success-info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    border-bottom: 1px solid var(--border-light);
}

.success-info-row:last-child {
    border-bottom: none;
}

.success-info-label {
    color: var(--text-secondary);
}

.success-info-value {
    color: var(--text-primary);
    font-weight: 500;
}

.btn-confirm {
    padding: 12px 40px;
    border: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-confirm:hover {
    opacity: 0.92;
    transform: translateY(-1px);
}

/* Responsive */
@media (max-width: 768px) {
    .app-header {
        padding: 32px 0 24px;
    }

    .logo {
        font-size: 22px;
    }

    .input-card {
        padding: 20px;
    }

    .toolbar {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .modal-meta {
        grid-template-columns: 1fr;
    }

    .detail-layout {
        grid-template-columns: 1fr;
    }

    .detail-gallery {
        min-height: 300px;
    }

    .detail-info {
        padding: 20px;
    }

    .detail-price {
        font-size: 28px;
    }

    .detail-meta-grid {
        grid-template-columns: 1fr;
    }

    .detail-action-bar {
        padding: 10px 16px;
    }

    .detail-action-bar .btn-buy,
    .detail-action-bar .btn-back-list {
        flex: 1;
        padding: 12px 16px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr;
    }

    .quick-tags {
        gap: 6px;
    }

    .tag {
        padding: 4px 10px;
        font-size: 12px;
    }

    .detail-title {
        font-size: 18px;
    }
}