/* Custom CSS Variables */
:root {
    --color-primary: #dd3333;
    --color-primary-dark: #bb2222;
    --color-secondary: #333333;
    --color-light: #f8f9fa;
    --color-gray: #6c757d;
    --font-primary: 'Open Sans', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
}

/* General Typography */
body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: #333;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 600;
}

/* Article Content Typography - Complementing Tailwind's prose */
.prose {
    max-width: 100%;
}

.prose h2 {
    font-size: 1.75rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-secondary);
}

.prose h3 {
    font-size: 1.5rem;
    margin-top: 1.75rem;
    margin-bottom: 0.75rem;
    color: var(--color-secondary);
}

.prose p {
    margin-bottom: 1.25rem;
}

.prose ul, .prose ol {
    margin-bottom: 1.5rem;
}

.prose a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s;
}

.prose a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.prose blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: 1rem;
    font-style: italic;
    color: var(--color-gray);
}

.prose img {
    border-radius: 0.5rem;
    margin: 1.5rem 0;
}

/* Animations and Transitions */
.transition-all {
    transition-property: all;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 300ms;
}

/* Line Clamp for Excerpts */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Custom Card Hover Effect */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Sidebar Sticky Effect */
@media (min-width: 1024px) {
    .sticky-sidebar {
        position: sticky;
        top: 2rem;
    }
}

/* Custom Form Elements */
.form-input {
    border: 1px solid #e2e8f0;
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    width: 100%;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(221, 51, 51, 0.2);
}

.btn {
    display: inline-block;
    background-color: var(--color-primary);
    color: white;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.3s;
    cursor: pointer;
    text-align: center;
}

.btn:hover {
    background-color: var(--color-primary-dark);
}

/* Mobile Menu Enhancements */
@media (max-width: 1023px) {
    .mobile-menu-open {
        overflow: hidden;
    }
    
    #mobile-menu {
        width: 100%;
        background-color: white;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        position: absolute;
        z-index: 9999;
    }
    
    #mobile-menu.mobile-menu-hidden {
        display: none !important;
    }
    
    #mobile-menu.mobile-menu-visible {
        display: block !important;
    }
    
    /* 使用data属性控制 */
    #mobile-menu[data-hidden] {
        display: none !important;
    }
    
    #mobile-menu[data-visible] {
        display: block !important;
    }
    
    #mobile-menu a {
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid rgba(0,0,0,0.05);
        font-size: 1rem;
        transition: color 0.2s ease;
    }
    
    #mobile-menu a:last-child {
        border-bottom: none;
    }
    
    #mobile-menu-button {
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }
}

/* Responsive Video Container */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    margin: 1.5rem 0;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 0.5rem;
} 


/* 默认滚动条样式 */
.scrollbar-thin::-webkit-scrollbar {
height: 6px;
}

.scrollbar-thin::-webkit-scrollbar-track {
background: #f1f1f1;
border-radius: 3px;
}

.scrollbar-thin::-webkit-scrollbar-thumb {
background: #c1c1c1;
border-radius: 3px;
}

.scrollbar-thin::-webkit-scrollbar-thumb:hover {
background: #a0a0a0;
}

/* Firefox滚动条样式 */
.scrollbar-thin {
scrollbar-width: thin;
scrollbar-color: #c1c1c1 #f1f1f1;
}