:root {
    --primary-color: #1890ff;
    --primary-hover: #40a9ff;
    --primary-active: #096dd9;
    --success-color: #52c41a;
    --warning-color: #faad14;
    --error-color: #f5222d;
    --info-color: #722ed1;
    
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-white: #ffffff;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #fafafa;
    
    --border-color: #e8e8e8;
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 2px 10px rgba(0,0,0,0.08);
    --shadow-lg: 0 5px 20px rgba(0,0,0,0.12);
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    --font-size-xs: 10px;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-xxl: 24px;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #e8e8e8;
        --text-secondary: #a0a0a0;
        --text-muted: #666666;
        --bg-primary: #1f1f1f;
        --bg-secondary: #2a2a2a;
        --bg-tertiary: #333333;
        --border-color: #404040;
    }
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -0.5);
}

.col { flex: 1; }
.col-auto { flex: 0 0 auto; }

.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

@media (min-width: 576px) {
    .col-sm-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-sm-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-sm-3 { flex: 0 0 25%; max-width: 25%; }
    .col-sm-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-sm-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
    .col-sm-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-sm-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-sm-9 { flex: 0 0 75%; max-width: 75%; }
    .col-sm-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-sm-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 768px) {
    .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-md-9 { flex: 0 0 75%; max-width: 75%; }
    .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 1024px) {
    .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
    .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
    .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
    .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
}

.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

@media (max-width: 575px) {
    .d-xs-none { display: none !important; }
    .d-xs-block { display: block !important; }
    .d-xs-flex { display: flex !important; }
}

@media (min-width: 576px) and (max-width: 767px) {
    .d-sm-only-none { display: none !important; }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .d-md-only-none { display: none !important; }
}

@media (min-width: 1024px) {
    .d-lg-none { display: none !important; }
    .d-lg-block { display: block !important; }
    .d-lg-flex { display: flex !important; }
}

@media (max-width: 767px) {
    .d-mobile-none { display: none !important; }
    .d-mobile-block { display: block !important; }
    .d-mobile-flex { display: flex !important; }
}

@media (min-width: 768px) {
    .d-desktop-none { display: none !important; }
    .d-desktop-block { display: block !important; }
    .d-desktop-flex { display: flex !important; }
}

.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

.justify-start { justify-content: flex-start !important; }
.justify-end { justify-content: flex-end !important; }
.justify-center { justify-content: center !important; }
.justify-between { justify-content: space-between !important; }
.justify-around { justify-content: space-around !important; }

.align-start { align-items: flex-start !important; }
.align-end { align-items: flex-end !important; }
.align-center { align-items: center !important; }
.align-stretch { align-items: stretch !important; }

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }

.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-error { color: var(--error-color) !important; }
.text-muted { color: var(--text-muted) !important; }

.font-xs { font-size: var(--font-size-xs) !important; }
.font-sm { font-size: var(--font-size-sm) !important; }
.font-base { font-size: var(--font-size-base) !important; }
.font-lg { font-size: var(--font-size-lg) !important; }
.font-xl { font-size: var(--font-size-xl) !important; }
.font-xxl { font-size: var(--font-size-xxl) !important; }

.font-normal { font-weight: 400 !important; }
.font-medium { font-weight: 500 !important; }
.font-bold { font-weight: 700 !important; }

.m-0 { margin: 0 !important; }
.m-xs { margin: var(--spacing-xs) !important; }
.m-sm { margin: var(--spacing-sm) !important; }
.m-md { margin: var(--spacing-md) !important; }
.m-lg { margin: var(--spacing-lg) !important; }
.m-xl { margin: var(--spacing-xl) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-xs { margin-top: var(--spacing-xs) !important; }
.mt-sm { margin-top: var(--spacing-sm) !important; }
.mt-md { margin-top: var(--spacing-md) !important; }
.mt-lg { margin-top: var(--spacing-lg) !important; }
.mt-xl { margin-top: var(--spacing-xl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-xs { margin-bottom: var(--spacing-xs) !important; }
.mb-sm { margin-bottom: var(--spacing-sm) !important; }
.mb-md { margin-bottom: var(--spacing-md) !important; }
.mb-lg { margin-bottom: var(--spacing-lg) !important; }
.mb-xl { margin-bottom: var(--spacing-xl) !important; }

.p-0 { padding: 0 !important; }
.p-xs { padding: var(--spacing-xs) !important; }
.p-sm { padding: var(--spacing-sm) !important; }
.p-md { padding: var(--spacing-md) !important; }
.p-lg { padding: var(--spacing-lg) !important; }
.p-xl { padding: var(--spacing-xl) !important; }

.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }
.mw-100 { max-width: 100% !important; }
.mh-100 { max-height: 100% !important; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-white);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--border-color);
}

.btn-success {
    background-color: var(--success-color);
    color: var(--text-white);
}

.btn-warning {
    background-color: var(--warning-color);
    color: var(--text-white);
}

.btn-error {
    background-color: var(--error-color);
    color: var(--text-white);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: var(--text-white);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.btn-block {
    display: flex;
    width: 100%;
}

.card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: var(--spacing-md);
}

.card-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:disabled {
    background-color: var(--bg-secondary);
    cursor: not-allowed;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: calc(var(--spacing-md) * 2 + 12px);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-error {
    color: var(--error-color);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    line-height: 1.5;
    border-radius: 10px;
}

.badge-primary { background-color: rgba(24, 144, 255, 0.1); color: var(--primary-color); }
.badge-success { background-color: rgba(82, 196, 26, 0.1); color: var(--success-color); }
.badge-warning { background-color: rgba(250, 173, 20, 0.1); color: var(--warning-color); }
.badge-error { background-color: rgba(245, 34, 45, 0.1); color: var(--error-color); }

.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.alert-primary { background-color: rgba(24, 144, 255, 0.1); color: var(--primary-color); }
.alert-success { background-color: rgba(82, 196, 26, 0.1); color: var(--success-color); }
.alert-warning { background-color: rgba(250, 173, 20, 0.1); color: var(--warning-color); }
.alert-error { background-color: rgba(245, 34, 45, 0.1); color: var(--error-color); }

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    background-color: var(--bg-tertiary);
}

.table tbody tr:hover {
    background-color: var(--bg-tertiary);
}

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 767px) {
    .table-responsive thead {
        display: none;
    }
    
    .table-responsive tbody tr {
        display: block;
        margin-bottom: var(--spacing-md);
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
    }
    
    .table-responsive tbody td {
        display: flex;
        justify-content: space-between;
        padding: var(--spacing-sm) var(--spacing-md);
        border-bottom: 1px solid var(--border-color);
    }
    
    .table-responsive tbody td:last-child {
        border-bottom: none;
    }
    
    .table-responsive tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        margin-right: var(--spacing-md);
    }
}

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.modal {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

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

.modal-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-muted);
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--bg-secondary);
}

.modal-body {
    padding: var(--spacing-md);
    overflow-y: auto;
    max-height: calc(90vh - 130px);
}

.modal-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

@media (max-width: 575px) {
    .modal {
        max-width: calc(100% - var(--spacing-md) * 2);
        margin: var(--spacing-md);
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .btn {
        width: 100%;
    }
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 16px;
    margin-bottom: var(--spacing-sm);
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: var(--spacing-md);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.skeleton-image {
    width: 100%;
    aspect-ratio: 16/9;
}

.skeleton-button {
    height: 40px;
    width: 100px;
}

.fade-in {
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp var(--transition-normal);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

.toast-container {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: var(--z-tooltip);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: slideIn var(--transition-normal);
    max-width: 350px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-success { border-left: 4px solid var(--success-color); }
.toast-error { border-left: 4px solid var(--error-color); }
.toast-warning { border-left: 4px solid var(--warning-color); }
.toast-info { border-left: 4px solid var(--primary-color); }

@media (max-width: 575px) {
    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .toast {
        max-width: 100%;
    }
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.empty-state-icon {
    font-size: 64px;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.empty-state-title {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.empty-state-desc {
    font-size: var(--font-size-base);
    color: var(--text-muted);
}

@media (max-width: 767px) {
    :root {
        --font-size-base: 13px;
        --spacing-md: 12px;
        --spacing-lg: 16px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .btn {
        padding: var(--spacing-sm);
    }
    
    .card-body {
        padding: var(--spacing-sm);
    }
    
    /* 首页移动端优化 */
    .header {
        padding: 12px 15px;
    }
    
    .header-logo h1 {
        font-size: 16px;
    }
    
    .search-input {
        padding: 8px 12px 8px 36px;
        font-size: 13px;
    }
    
    .search-btn {
        padding: 8px 15px;
        font-size: 13px;
    }
    
    .categories {
        padding: 12px 0;
    }
    
    .categories-inner {
        padding: 0 12px;
    }
    
    .category-item {
        padding: 8px 18px;
        font-size: 13px;
    }
    
    .products {
        padding: 12px;
    }
    
    .product-grid {
        gap: 10px;
    }
    
    .product-info {
        padding: 10px;
    }
    
    .product-name {
        font-size: 13px;
    }
    
    .product-price .current {
        font-size: 16px;
    }
    
    .product-btn {
        padding: 8px;
        font-size: 13px;
    }
    
    .runtime {
        padding: 20px 15px;
        margin: 12px;
        font-size: 13px;
    }
    
    .deposit-card, .deposit-banner, .deposit-trust-bar {
        margin: 12px;
        padding: 15px;
    }
    
    .deposit-amount {
        font-size: 20px;
    }
    
    .popup {
        max-width: calc(100% - 30px);
        margin: 15px;
    }
    
    .popup-header {
        padding: 15px;
    }
    
    .popup-content {
        padding: 15px;
        max-height: 40vh;
    }
    
    .popup-footer {
        padding: 12px 15px;
        flex-direction: column;
    }
    
    .popup-footer .btn {
        width: 100%;
    }
    
    .toolbar {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    
    .result-info {
        text-align: center;
    }
    
    .sort-wrapper {
        justify-content: center;
    }
    
    .pagination {
        padding: 15px 10px;
    }
    
    .pagination-item {
        min-width: 32px;
        height: 32px;
        font-size: 13px;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-lg);
    }
    
    /* 首页平板端优化 */
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .header {
        padding: 12px 20px;
    }
    
    .categories-inner {
        padding: 0 20px;
    }
    
    .products {
        padding: 20px;
    }
    
    .runtime {
        margin: 20px;
    }
    
    .deposit-card, .deposit-banner, .deposit-trust-bar {
        margin: 20px;
    }
    
    .popup {
        max-width: 400px;
    }
}

/* 小屏幕手机适配 */
@media (max-width: 374px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .header-logo h1 {
        font-size: 14px;
    }
    
    .search-btn {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .category-item {
        padding: 6px 14px;
        font-size: 12px;
    }
    
    .product-price .current {
        font-size: 14px;
    }
    
    .deposit-amount {
        font-size: 18px;
    }
    
    .deposit-banner-amount {
        font-size: 18px;
    }
}

/* 大屏幕优化 */
@media (min-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .container {
        max-width: 1400px;
    }
}

/* 超大屏幕优化 */
@media (min-width: 1600px) {
    .product-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    
    .container {
        max-width: 1600px;
    }
}

@media print {
    .d-print-none { display: none !important; }
    
    body {
        background: white;
        color: black;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ============================================
   管理员后台响应式布局
   ============================================ */

/* ========== PC端布局（>=1024px）========== */
@media (min-width: 1024px) {
    /* 侧边栏固定显示 */
    .admin-wrapper .sidebar,
    .admin-wrapper aside.sidebar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: 0 !important;
        width: 260px !important;
        transform: translateX(0) !important;
        z-index: 1000 !important;
    }
    
    /* 内容区域正确边距 */
    .admin-wrapper .admin-content {
        margin-left: 260px !important;
        min-height: 100vh;
    }
    
    /* 统计卡片4列显示 */
    .admin-wrapper .stats-row {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    
    /* 图表区域2列显示 */
    .admin-wrapper .chart-row {
        display: grid;
        grid-template-columns: 1.5fr 1fr;
        gap: 20px;
    }
    
    /* 数据表格区域2列显示 */
    .admin-wrapper .data-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    /* 系统状态2列显示 */
    .admin-wrapper .system-status {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    /* 隐藏移动端菜单按钮 */
    .admin-wrapper .sidebar-toggle {
        display: none !important;
    }
    
    /* 隐藏关闭按钮 */
    .admin-wrapper .sidebar-close {
        display: none !important;
    }
    
    /* 隐藏遮罩层 */
    .admin-wrapper .sidebar-overlay {
        display: none !important;
    }
    
    /* 页面内容正常内边距 */
    .admin-wrapper .page-content {
        padding-top: 24px;
    }
    
    /* 页面头部水平排列 */
    .admin-wrapper .page-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .admin-wrapper .page-header h1,
    .admin-wrapper .page-header .page-title {
        text-align: left;
        margin: 0;
    }
    
    .admin-wrapper .header-actions {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .admin-wrapper .welcome-text {
        display: block;
    }
    
    /* 筛选栏水平排列 */
    .admin-wrapper .filter-bar {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .admin-wrapper .filter-group {
        flex-direction: row;
        align-items: center;
    }
    
    .admin-wrapper .filter-bar .btn {
        min-height: 36px;
        width: auto;
    }
    
    /* 表格正常显示 */
    .admin-wrapper .data-table thead {
        display: table-header-group;
    }
    
    .admin-wrapper .data-table tbody tr {
        display: table-row;
    }
    
    .admin-wrapper .data-table tbody td {
        display: table-cell;
    }
    
    .admin-wrapper .data-table tbody td::before {
        display: none;
    }
}

/* 大屏幕优化（>=1200px） */
@media (min-width: 1200px) {
    .admin-wrapper .stats-row {
        gap: 24px;
    }
    
    .admin-wrapper .stat-card {
        padding: 24px;
    }
    
    .admin-wrapper .stat-value {
        font-size: 32px;
    }
}

/* ========== 平板端布局（768px-1023px）========== */
@media (min-width: 768px) and (max-width: 1023px) {
    /* 侧边栏可收起 */
    .admin-wrapper .sidebar,
    .admin-wrapper aside.sidebar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: 0 !important;
        width: 260px !important;
        transform: translateX(-100%);
        z-index: 1000 !important;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .admin-wrapper .sidebar.show,
    .admin-wrapper aside.sidebar.show {
        transform: translateX(0);
    }
    
    /* 显示关闭按钮 */
    .admin-wrapper .sidebar-close {
        display: block !important;
    }
    
    /* 内容区域全宽 */
    .admin-wrapper .admin-content {
        margin-left: 0 !important;
        min-height: 100vh;
    }
    
    /* 显示移动端菜单按钮 */
    .admin-wrapper .sidebar-toggle {
        display: flex !important;
        position: fixed;
        top: 16px;
        left: 16px;
        z-index: 1001;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border: none;
        border-radius: 8px;
        padding: 10px;
        cursor: pointer;
        color: white;
        box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
        transition: all 0.3s ease;
        align-items: center;
        justify-content: center;
    }
    
    .admin-wrapper .sidebar-toggle:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(102, 126, 234, 0.5);
    }
    
    /* 遮罩层 */
    .admin-wrapper .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }
    
    .admin-wrapper .sidebar-overlay.show {
        display: block;
        opacity: 1;
    }
    
    /* 统计卡片2列显示 */
    .admin-wrapper .stats-row {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    /* 图表区域1列显示 */
    .admin-wrapper .chart-row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    /* 数据表格区域1列显示 */
    .admin-wrapper .data-row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    /* 系统状态1列显示 */
    .admin-wrapper .system-status {
        display: grid;
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    /* 页面头部水平排列 */
    .admin-wrapper .page-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .admin-wrapper .page-header h1,
    .admin-wrapper .page-header .page-title {
        text-align: left;
        margin: 0;
    }
    
    .admin-wrapper .header-actions {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .admin-wrapper .welcome-text {
        display: block;
    }
    
    /* 筛选栏水平排列 */
    .admin-wrapper .filter-bar {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .admin-wrapper .filter-group {
        flex-direction: row;
        align-items: center;
    }
    
    .admin-wrapper .filter-bar .btn {
        min-height: 36px;
        width: auto;
    }
    
    /* 表格横向滚动 */
    .admin-wrapper .data-table-body,
    .admin-wrapper .card-body {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .admin-wrapper .data-table {
        min-width: 100%;
    }
    
    .admin-wrapper .data-table table {
        min-width: 700px;
    }
    
    /* 表格正常显示 */
    .admin-wrapper .data-table thead {
        display: table-header-group;
    }
    
    .admin-wrapper .data-table tbody tr {
        display: table-row;
    }
    
    .admin-wrapper .data-table tbody td {
        display: table-cell;
    }
    
    .admin-wrapper .data-table tbody td::before {
        display: none;
    }
    
    /* 内容区域顶部留出按钮空间 */
    .admin-wrapper .page-content {
        padding-top: 70px;
    }
    
    /* 统计卡片调整 */
    .admin-wrapper .stat-card {
        padding: 18px;
    }
    
    .admin-wrapper .stat-value {
        font-size: 26px;
    }
    
    /* 图表高度调整 */
    .admin-wrapper .chart-card .card-body {
        height: 280px;
    }
}

/* ========== 手机端布局（<768px）========== */
@media (max-width: 767px) {
    /* 侧边栏隐藏 */
    .admin-wrapper .sidebar,
    .admin-wrapper aside.sidebar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: 0 !important;
        width: 260px !important;
        transform: translateX(-100%);
        z-index: 1000 !important;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .admin-wrapper .sidebar.show,
    .admin-wrapper aside.sidebar.show {
        transform: translateX(0);
    }
    
    /* 显示关闭按钮 */
    .admin-wrapper .sidebar-close {
        display: block !important;
    }
    
    /* 内容区域全宽 */
    .admin-wrapper .admin-content {
        margin-left: 0 !important;
        min-height: 100vh;
    }
    
    /* 显示移动端菜单按钮 */
    .admin-wrapper .sidebar-toggle {
        display: flex !important;
        position: fixed;
        top: 12px;
        left: 12px;
        z-index: 1001;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        border: none;
        border-radius: 8px;
        padding: 10px;
        cursor: pointer;
        color: white;
        box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
        transition: all 0.3s ease;
        align-items: center;
        justify-content: center;
    }
    
    .admin-wrapper .sidebar-toggle:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(102, 126, 234, 0.5);
    }
    
    /* 遮罩层 */
    .admin-wrapper .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
    }
    
    .admin-wrapper .sidebar-overlay.show {
        display: block;
        opacity: 1;
    }
    
    /* 统计卡片1列显示 */
    .admin-wrapper .stats-row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    /* 图表区域1列显示 */
    .admin-wrapper .chart-row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    /* 数据表格区域1列显示 */
    .admin-wrapper .data-row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    /* 系统状态1列显示 */
    .admin-wrapper .system-status {
        display: grid;
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    /* 页面头部垂直排列 */
    .admin-wrapper .page-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .admin-wrapper .page-header h1,
    .admin-wrapper .page-header .page-title {
        font-size: 20px;
        text-align: left;
        margin: 0;
    }
    
    .admin-wrapper .header-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        width: 100%;
    }
    
    .admin-wrapper .header-actions .btn {
        min-height: 44px;
        width: 100%;
    }
    
    .admin-wrapper .time-range-selector {
        width: 100%;
    }
    
    .admin-wrapper .time-range-selector select {
        width: 100%;
    }
    
    .admin-wrapper .welcome-text {
        display: none;
    }
    
    /* 筛选栏垂直排列 */
    .admin-wrapper .filter-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .admin-wrapper .filter-group {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }
    
    .admin-wrapper .filter-group .form-control {
        width: 100%;
    }
    
    .admin-wrapper .filter-bar .btn {
        min-height: 44px;
        width: 100%;
    }
    
    .admin-wrapper .search-box input {
        width: 100%;
        padding-left: 36px;
    }
    
    /* 表格转换为卡片列表 */
    .admin-wrapper .data-table thead {
        display: none;
    }
    
    .admin-wrapper .data-table tbody {
        display: block;
    }
    
    .admin-wrapper .data-table tbody tr {
        display: block;
        margin-bottom: 12px;
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        background: var(--bg-primary);
        padding: 0;
        box-shadow: var(--shadow-sm);
    }
    
    .admin-wrapper .data-table tbody tr:hover {
        background: var(--bg-primary);
    }
    
    .admin-wrapper .data-table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 14px;
        border-bottom: 1px solid var(--border-color);
        min-height: 44px;
        text-align: right;
        white-space: normal;
    }
    
    .admin-wrapper .data-table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 13px;
        margin-right: auto;
        text-align: left;
        flex-shrink: 0;
    }
    
    .admin-wrapper .data-table tbody td:last-child {
        border-bottom: none;
    }
    
    /* 操作按钮适配 */
    .admin-wrapper .action-buttons {
        flex-wrap: wrap;
        justify-content: flex-end;
        gap: 6px;
    }
    
    .admin-wrapper .action-btn {
        width: 36px;
        height: 36px;
    }
    
    /* 卡片内表格适配 */
    .admin-wrapper .card-body .table thead {
        display: none;
    }
    
    .admin-wrapper .card-body .table tbody tr {
        display: block;
        margin-bottom: 12px;
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        padding: 0;
        box-shadow: var(--shadow-sm);
    }
    
    .admin-wrapper .card-body .table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 14px;
        border-bottom: 1px solid var(--border-color);
        min-height: 44px;
        white-space: normal;
    }
    
    .admin-wrapper .card-body .table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 13px;
        margin-right: auto;
        text-align: left;
    }
    
    .admin-wrapper .card-body .table tbody td:last-child {
        border-bottom: none;
    }
    
    /* 内容区域顶部留出按钮空间 */
    .admin-wrapper .page-content {
        padding: 60px 12px 12px;
    }
    
    /* 统计卡片调整 */
    .admin-wrapper .stat-card {
        padding: 16px;
    }
    
    .admin-wrapper .stat-icon-wrapper {
        width: 48px;
        height: 48px;
    }
    
    .admin-wrapper .stat-value {
        font-size: 24px;
    }
    
    .admin-wrapper .stat-label {
        font-size: 13px;
    }
    
    /* 图表高度调整 */
    .admin-wrapper .chart-card .card-body {
        height: 250px;
        padding: 12px;
    }
    
    /* 图表标签适配 */
    .admin-wrapper .chart-tabs {
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .admin-wrapper .chart-tab {
        padding: 5px 12px;
        font-size: 12px;
    }
    
    /* 状态网格1列 */
    .admin-wrapper .status-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    /* 提醒卡片适配 */
    .admin-wrapper .alert-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .admin-wrapper .alert-card {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .admin-wrapper .alert-link {
        width: 100%;
        text-align: center;
    }
    
    /* 模态框适配 */
    .admin-wrapper .modal {
        width: 95vw !important;
        max-height: 85vh;
        margin: 10px;
    }
    
    .admin-wrapper .modal-body {
        max-height: calc(85vh - 140px);
        padding: 16px;
    }
    
    .admin-wrapper .modal-footer {
        flex-direction: column;
        gap: 8px;
    }
    
    .admin-wrapper .modal-footer .btn {
        width: 100%;
    }
    
    /* 分页适配 */
    .admin-wrapper .data-table-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .admin-wrapper .pagination {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .admin-wrapper .pagination-item {
        min-width: 36px;
        height: 36px;
    }
    
    /* 表单适配 */
    .admin-wrapper .form-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .admin-wrapper .card-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .admin-wrapper .card-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
    }
    
    /* 数据表格头部适配 */
    .admin-wrapper .data-table-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .admin-wrapper .data-table-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
    }
    
    /* 操作按钮适配 */
    .admin-wrapper .action-buttons {
        flex-wrap: wrap;
        justify-content: flex-end;
        gap: 6px;
    }
    
    /* 订单通知弹窗适配 */
    .admin-wrapper .order-notification-popup {
        left: 10px;
        right: 10px;
        width: auto;
        max-width: calc(100vw - 20px);
    }
}

/* ========== 小屏幕手机适配（<375px）========== */
@media (max-width: 374px) {
    .admin-wrapper .page-content {
        padding: 60px 10px 10px;
    }
    
    .admin-wrapper .stat-card {
        padding: 14px;
    }
    
    .admin-wrapper .stat-icon-wrapper {
        width: 42px;
        height: 42px;
    }
    
    .admin-wrapper .stat-value {
        font-size: 20px;
    }
    
    .admin-wrapper .stat-label {
        font-size: 12px;
    }
    
    .admin-wrapper .page-header h1 {
        font-size: 18px;
    }
    
    .admin-wrapper .chart-card .card-body {
        height: 220px;
    }
    
    .admin-wrapper .sidebar {
        width: 260px;
    }
    
    .admin-wrapper .sidebar-toggle {
        padding: 8px;
    }
}

/* ========== 横屏手机适配 ========== */
@media (max-width: 767px) and (orientation: landscape) {
    .admin-wrapper .page-content {
        padding-top: 60px;
    }
    
    .admin-wrapper .chart-card .card-body {
        height: 200px;
    }
    
    .admin-wrapper .modal {
        max-height: 90vh;
    }
    
    .admin-wrapper .modal-body {
        max-height: calc(90vh - 100px);
    }
}

/* ========== 触摸设备优化 ========== */
@media (hover: none) and (pointer: coarse) {
    /* 增大点击区域 */
    .admin-wrapper .menu-item {
        min-height: 48px;
    }
    
    .admin-wrapper .btn {
        min-height: 44px;
    }
    
    .admin-wrapper .form-control {
        min-height: 44px;
    }
    
    .admin-wrapper .pagination-item {
        min-width: 44px;
        min-height: 44px;
    }
    
    .admin-wrapper .action-btn {
        width: 44px;
        height: 44px;
    }
    
    /* 移除hover效果 */
    .admin-wrapper .stat-card:hover {
        transform: none;
    }
    
    .admin-wrapper .alert-card:hover {
        transform: none;
    }
}

/* ========== 高分辨率屏幕适配 ========== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .admin-wrapper .sidebar {
        border-right: 0.5px solid rgba(255, 255, 255, 0.1);
    }
    
    .admin-wrapper .card {
        border: 0.5px solid var(--border-color);
    }
}

/* ========== 打印样式 ========== */
@media print {
    .admin-wrapper .sidebar,
    .admin-wrapper .sidebar-toggle,
    .admin-wrapper .sidebar-overlay,
    .admin-wrapper .order-notification-popup {
        display: none !important;
    }
    
    .admin-wrapper .admin-content {
        margin-left: 0;
    }
    
    .admin-wrapper .page-content {
        padding: 0;
    }
    
    .admin-wrapper .card {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
    }
    
    .admin-wrapper .data-table thead {
        display: table-header-group;
    }
    
    .admin-wrapper .data-table tbody tr {
        display: table-row;
    }
    
    .admin-wrapper .data-table tbody td {
        display: table-cell;
    }
    
    .admin-wrapper .data-table tbody td::before {
        display: none;
    }
}