:root {
    --color-bg-primary: #fafbfc;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #f4f6f8;
    --color-bg-gradient-start: #f8fafc;
    --color-bg-gradient-end: #eef2f6;
    --bg-hover: #f8faff;
    
    --color-text-primary: #1a1d21;
    --color-text-secondary: #5c6370;
    --color-text-tertiary: #8b949e;
    --color-text-tertiary-rgb: 139, 148, 158;
    --color-text-inverse: #ffffff;
    
    --color-brand-primary: #6366f1;
    --color-brand-primary-rgb: 99, 102, 241;
    --color-brand-primary-hover: #4f46e5;
    --color-brand-primary-light: rgba(99, 102, 241, 0.1);
    --color-brand-secondary: #0ea5e9;
    --color-brand-accent: #8b5cf6;
    --color-brand-accent-rgb: 139, 92, 246;
    
    --color-success: #10b981;
    --color-success-rgb: 16, 185, 129;
    --color-success-light: #ecfdf5;
    --color-success-border: #a7f3d0;
    --color-warning: #f59e0b;
    --color-warning-rgb: 245, 158, 11;
    --color-warning-light: #fffbeb;
    --color-warning-dark: #92400e;
    --color-danger: #ef4444;
    --color-danger-rgb: 239, 68, 68;
    --color-danger-light: #fef2f2;
    --color-danger-dark: #991b1b;
    --color-info: #3b82f6;
    --color-info-rgb: 59, 130, 246;

    
    --color-border: rgba(0, 0, 0, 0.06);
    --color-border-hover: rgba(0, 0, 0, 0.12);
    --color-divider: rgba(0, 0, 0, 0.04);
    
    --border-color: #f0f2f5;
    --border-strong: #e8ecf5;
    --border-hover: rgba(108, 92, 231, 0.08);

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.16), 0 8px 16px rgba(0, 0, 0, 0.08);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
    
    --radius-4: 4px;
    --radius-6: 6px;
    --radius-8: 8px;
    --radius-10: 10px;
    --radius-12: 12px;
    --radius-16: 16px;
    --radius-20: 20px;
    --radius-24: 24px;
    --radius-9999: 9999px;
    
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-theme: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    
    --navbar-height: 72px;
    --container-max-width: 1280px;
}

[data-theme="dark"] {
    --color-bg-primary: #0d1117;
    --color-bg-secondary: #161b22;
    --color-bg-tertiary: #21262d;
    --color-bg-gradient-start: #0d1117;
    --color-bg-gradient-end: #161b22;
    --bg-hover: rgba(139, 124, 240, 0.06);
    
    --color-text-primary: #f0f6fc;
    --color-text-secondary: #8b949e;
    --color-text-tertiary: #6e7681;
    --color-text-tertiary-rgb: 110, 118, 129;
    --color-text-inverse: #0d1117;
    

    --color-brand-primary: #818cf8;
    --color-brand-primary-rgb: 129, 140, 248;
    --color-brand-primary-hover: #a5b4fc;
    --color-brand-primary-light: rgba(129, 140, 248, 0.15);
    --color-brand-accent-rgb: 139, 92, 246;

    --color-success: #34d399;
    --color-success-rgb: 52, 211, 153;
    --color-success-light: #064e3b;
    --color-success-border: #065f46;
    --color-warning: #fbbf24;
    --color-warning-rgb: 251, 191, 36;
    --color-warning-light: #78350f;
    --color-warning-dark: #fcd34d;
    --color-danger: #f87171;
    --color-danger-rgb: 248, 113, 113;
    --color-danger-light: #450a0a;
    --color-danger-dark: #fca5a5;
    --color-info: #60a5fa;
    --color-info-rgb: 96, 165, 250;


    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.16);
    --color-divider: rgba(255, 255, 255, 0.04);

    --border-color: #2a2d3e;
    --border-strong: #3a3d4e;
    --border-hover: rgba(139, 124, 240, 0.12);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4), 0 4px 8px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.5), 0 8px 16px rgba(0, 0, 0, 0.4);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.3);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    min-height: 100vh;
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

img, svg {
    display: block;
    max-width: 100%;
}

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

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

ul, ol {
    list-style: none;
}

.container {
    width: 100%;
    margin: 0 auto;
    padding-top: calc(var(--navbar-height) + var(--spacing-lg)) !important;
}

.container.container-sm {
    max-width: 1100px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    border-radius: var(--radius-16);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    outline: none;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-brand-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-outline {
    background: transparent;
    color: var(--color-brand-primary);
    border: 1.5px solid var(--color-brand-primary);
}

.btn-outline:hover {
    background: var(--color-brand-primary-light);
    transform: translateY(-2px);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    border-radius: var(--radius-20);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-12);
}

.page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-bg-gradient-start) 0%, var(--color-bg-gradient-end) 100%);
}

.text-sm { font-size: var(--font-size-sm); }

.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-brand { color: var(--color-brand-primary); }

.text-center { text-align: center; }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }


.hidden { display: none; }

.w-full { width: 100%; }

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

.mb-lg { margin-bottom: var(--spacing-lg); }

.rounded-lg { border-radius: var(--radius-16); }

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

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

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 模态框缩放淡入动画：scale(0.9) + opacity(0) → scale(1) + opacity(1) */
@keyframes modalZoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 模态框遮罩层公共样式：仅抽取定位与居中规则，
   各模态框自行管理 display/visibility 切换、背景、层级与动画 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
}

/* 卡片公共基础样式：仅抽取 model-config-card / market-index-card / fund-list-card
   三者完全一致的基础属性，各卡片自行管理 hover、transition、间距等差异属性 */
.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-16);
    padding: 28px;
    box-shadow: var(--shadow-card);
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-on-scroll.animate-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 消息列表等页面通过 stagger-{{ forloop.counter }} 动态使用 */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }

@media (max-width: 1280px) {
    :root {
        --container-max-width: 1024px;
    }
}

@media (max-width: 1024px) {
    :root {
        --container-max-width: 100%;
        --spacing-3xl: 48px;
        --spacing-4xl: 64px;
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: 64px;
        --spacing-2xl: 32px;
        --spacing-3xl: 40px;
        --spacing-4xl: 48px;
        --radius-20: 16px;
        --radius-24: 20px;
    }
    
    .container {
        padding-left: var(--spacing-md) !important;
        padding-right: var(--spacing-md) !important;
        padding-top: calc(var(--navbar-height) + var(--spacing-md)) !important;
    }
    
    .card {
        padding: var(--spacing-lg);
        border-radius: var(--radius-20);
    }
}

@media (max-width: 480px) {
    :root {
        --navbar-height: 56px;
        --spacing-xl: 24px;
        --spacing-2xl: 28px;
        --spacing-3xl: 32px;
        --radius-16: 12px;
        --radius-20: 16px;
        --radius-24: 18px;
    }
    
    .container {
        padding-left: var(--spacing-sm) !important;
        padding-right: var(--spacing-sm) !important;
        padding-top: calc(var(--navbar-height) + var(--spacing-sm)) !important;
    }
    
    .card {
        padding: var(--spacing-md);
        border-radius: var(--radius-16);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .btn-lg {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}