@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --color-primary: #007AFF;
    --color-primary-rgb: 0, 122, 255;
    --color-secondary: #5856D6;
    --color-secondary-rgb: 88, 86, 214;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-background: #FFFFFF;
    --color-card: #F9FAFB;
    --color-card-hover: #F3F4F6;
    --color-border: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition-base: all 0.3s ease;
    --border-radius-base: 8px;
    --font-size-base: 16px;
    --line-height-base: 1.5;
    --letter-spacing-base: -0.01em;
}

.dark {
    --color-primary: #3B82F6;
    --color-primary-rgb: 59, 130, 246;
    --color-secondary: #8B5CF6;
    --color-secondary-rgb: 139, 92, 246;
    --color-text: #F9FAFB;
    --color-text-light: #D1D5DB;
    --color-background: #111827;
    --color-card: #1F2937;
    --color-card-hover: #374151;
    --color-border: #374151;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

/* Base styles with improved readability */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    transition: background-color 0.3s ease, color 0.3s ease;
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    letter-spacing: var(--letter-spacing-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    width: 100%;
}

/* Card improvements for better visual aesthetics */
.card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-base);
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
    height: 100%;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background-color: var(--color-card-hover);
}

/* Timeline styling */
.timeline-item {
    position: relative;
    padding-left: 28px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-border);
}

.timeline-dot {
    position: absolute;
    left: -6px;
    top: 24px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: 3px solid var(--color-background);
    z-index: 1;
}

/* Text styling for better readability */
.gradient-text {
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1rem;
}

/* Profile image improvements */
.profile-image {
    border-radius: 50%;
    border: 3px solid transparent;
    background: linear-gradient(white, white) padding-box,
        linear-gradient(to right, var(--color-primary), var(--color-secondary)) border-box;
    transition: var(--transition-base);
    width: 100px;
    height: 100px;
    object-fit: cover;
    box-shadow: var(--shadow-md);
}

.profile-image:hover {
    transform: scale(1.05) rotate(5deg);
}

/* Social icons */
.social-icon {
    color: var(--color-text-light);
    transition: var(--transition-base);
    position: relative;
    top: 0;
    padding: 8px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.social-icon:hover {
    color: var(--color-primary);
    top: -3px;
    background-color: rgba(var(--color-primary-rgb), 0.1);
}

/* Theme toggle */
.theme-toggle {
    cursor: pointer;
    /* Ensure consistent padding and prevent unwanted transitions */
    padding: 0.5rem; /* Tailwind p-2 */
    border: none;
    transition: background-color 0.3s ease, color 0.3s ease; /* Only transition colors */
}

.theme-toggle:hover {
    /* Explicitly keep padding the same */
    padding: 0.5rem;
    /* Prevent any transform */
    transform: none;
    /* Background/color changes handled by Tailwind/other rules, transition applied above */
}
/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }

    100% {
        background-position: 200% center;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
    opacity: 0;
}

.float {
    animation: float 3s ease-in-out infinite;
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

.shimmer {
    background: linear-gradient(90deg,
            var(--color-card) 25%,
            var(--color-card-hover) 50%,
            var(--color-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 3s infinite;
}

/* Hover effects */
.hover-lift {
    transition: var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.hover-scale {
    transition: var(--transition-base);
}

.hover-scale:hover {
    transform: scale(1.02);
}

.hover-rotate {
    transition: var(--transition-base);
}

.hover-rotate:hover {
    transform: rotate(3deg);
}

/* Animation delays */
.delay-1 {
    animation-delay: 0.1s;
}

.delay-2 {
    animation-delay: 0.2s;
}

.delay-3 {
    animation-delay: 0.3s;
}

.delay-4 {
    animation-delay: 0.4s;
}

.delay-5 {
    animation-delay: 0.5s;
}

.delay-6 {
    animation-delay: 0.6s;
}

.delay-7 {
    animation-delay: 0.7s;
}

/* Default Nav Styles (Desktop) */
.mobile-nav-menu {
    /* Initial display state handled by transform below */
}
.mobile-menu-button {
     display: none; /* Hide mobile menu button by default */
}

/* Mobile responsiveness improvements */
@media (max-width: 768px) {
    :root {
        --font-size-base: 15px;
    }

    .container {
        padding: 1rem;
    }

    .profile-image {
        width: 80px;
        height: 80px;
    }

    h1 {
        font-size: 2rem !important;
    }

    h2 {
        font-size: 1.75rem !important;
    }

    h3 {
        font-size: 1.5rem !important;
    }



    /* .mobile-nav rule removed as it targeted the wrong element */

    /* Removed conflicting display rule here. Visibility is handled by transform + .open class */

    /* .mobile-nav-menu.open rule removed, using .active class from JS (line 671) */

    .mobile-menu-button {
        display: block; /* Show mobile menu button */
        /* Keep existing button styles from lines 649+ */
    }
}

@media (max-width: 640px) {
    :root {
        --font-size-base: 14px;
    }

    .grid {
        grid-template-columns: 1fr !important;
    }

    .section-spacing {
        margin-bottom: 2rem !important;
        padding-bottom: 2rem !important;
    }
}

/* Feature cards - fixed height issue for mobile */
.feature-card {
    height: auto;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.feature-card:hover {
    z-index: 10;
}

.feature-card .content-wrapper {
    position: relative;
    overflow: hidden;
    flex: 1;
}

.feature-card .feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    color: var(--color-secondary);
}

/* Content expansion indicator */
.feature-card .content-wrapper::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(transparent, var(--color-card));
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.feature-card:hover .content-wrapper::after {
    opacity: 0;
}

/* Code blocks */
.code-block {
    font-family: 'Fira Code', monospace;
    padding: 1rem;
    border-radius: 0.5rem;
    background-color: #1e293b;
    color: #e2e8f0;
    overflow-x: auto;
    max-height: 200px;
    overflow-y: auto;
    position: relative;
}

/* Ensure inner code inherits readable color on dark background */
.code-block code {
    color: inherit !important;
}

.code-block::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

.code-block::-webkit-scrollbar-track {
    background: #2d3748;
}

.code-block::-webkit-scrollbar-thumb {
    background: #4a5568;
    border-radius: 2px;
}

.code-block::-webkit-scrollbar-corner {
    background: #2d3748;
}

/* Scroll hint */
.scroll-hint {
    position: absolute;
    right: 0.5rem;
    bottom: 0.5rem;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.code-block:hover .scroll-hint {
    opacity: 1;
}

/* Tab navigation */
.tab-button {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    cursor: pointer;
}

.tab-button.active {
    background-color: var(--color-primary);
    color: white;
}

.tab-button:not(.active) {
    background-color: var(--color-card);
    border-color: var(--color-border);
}

.tab-button:not(.active):hover {
    border-color: var(--color-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease forwards;
}



/* Navigation styles */
.nav-link {
    position: relative;
    color: var(--color-text-light);
    text-decoration: none;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--color-primary);
    font-weight: 500;
}

/* Header with blur effect */
.header-blur {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-card);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Touch targets for mobile */
@media (max-width: 768px) {
    .nav-link {
        padding: 0.75rem 1rem;
        margin: 0.25rem 0;
    }

    .social-icon {
        padding: 10px;
        margin: 0 2px;
    }

    button,
    a,
    .tab-button,
    .nav-link {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .mobile-menu-button {
        padding: 10px;
        position: relative; /* Ensure z-index applies */
        z-index: 60; /* Position above header (z-10) and mobile menu (z-50) */
    }

    /* Mobile Navigation Menu Styles */
    .mobile-nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 80%; /* Or 100% if full screen is desired */
        height: 100vh;
        background-color: var(--color-background);
        z-index: 50; /* Below the menu button (z-60) */
        padding: 1.5rem;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        overflow-y: auto; /* Allow scrolling if content exceeds height */
    }

    .mobile-nav-menu.open { /* Changed .active to .open to match JS */
        transform: translateX(0);
        /* Re-adding opacity and visibility for clarity, though transform handles display */
        opacity: 1;
        visibility: visible;
    }

    /* Ensure close button is easily clickable */
    #closeMobileMenu {
        position: relative;
        z-index: 55; /* Above menu content */
    }

    /* Adjust header padding slightly on mobile if needed */
    header .container {
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }

    /* Ensure nav links inside mobile menu are block level */
    .mobile-nav-menu .nav-link {
        display: block;
        width: 100%;
        text-align: left;
        padding: 0.75rem 0; /* Adjust padding as needed */
        border-bottom: 1px solid var(--color-border);
    }
    .mobile-nav-menu .nav-link:last-child {
        border-bottom: none;
    }

    /* Style the theme toggle button within the mobile menu */
    .mobile-nav-menu #mobileThemeToggle {
        justify-content: flex-start; /* Align icon and text left */
        width: 100%;
    }
}
/* Ensure mobile theme toggle text is dark in dark mode for contrast */
.dark .mobile-nav-menu #mobileThemeToggle {
    color: #1F2937; /* Use light theme's dark text color */
}

/* Accessibility improvements */
:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 8px;
    z-index: 999;
    transition: top 0.3s;
    height: 1px;
    width: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link:focus {
    top: 0;
    height: auto;
    width: auto;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* 增长指标样式 */
#growth-metrics .card {
    transition: all 0.3s ease;
    overflow: hidden;
    border: 1px solid rgba(var(--color-border-rgb), 0.1);
}

#growth-metrics .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(var(--color-shadow-rgb), 0.1);
}

#growth-metrics .gradient-text {
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* 数字计数动画 */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#growth-metrics .gradient-text {
    animation: countUp 1.5s ease forwards;
}

#growth-metrics .card:nth-child(1) .gradient-text {
    animation-delay: 0.2s;
}

#growth-metrics .card:nth-child(2) .gradient-text {
    animation-delay: 0.4s;
}

#growth-metrics .card:nth-child(3) .gradient-text {
    animation-delay: 0.6s;
}

#growth-metrics .card:nth-child(4) .gradient-text {
    animation-delay: 0.8s;
}

/* 社区分析图表样式 */
#community-analytics .card {
    transition: all 0.3s ease;
    overflow: hidden;
}

#community-analytics .analytics-card {
    transition: all 0.5s ease;
    transform: translateY(20px);
    opacity: 0;
}

#community-analytics .analytics-card-loaded {
    transform: translateY(0);
    opacity: 1;
}

.analytics-chart {
    height: 280px;
    border-radius: 8px;
    overflow: hidden;
}

.chart-placeholder {
    transition: opacity 0.3s ease;
}

#visitorChart {
    cursor: pointer;
    position: relative;
}

#visitorChart::after {
    content: '双击切换数据集';
    position: absolute;
    bottom: 5px;
    right: 5px;
    background: rgba(0, 0, 0, 0.1);
    color: var(--color-text-light);
    font-size: 10px;
    padding: 2px 5px;
    border-radius: 3px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

#visitorChart:hover::after {
    opacity: 1;
}

@media (max-width: 1024px) {
    .analytics-chart {
        height: 220px;
    }
}

@media (max-width: 768px) {
    #community-analytics .card {
        padding: 1rem;
    }
    
    .analytics-chart {
        height: 200px;
    }
}

/* 数据指标样式 */
.metrics-card {
    background-color: var(--color-card);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 100%;
}

.metrics-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.metrics-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.metrics-card[data-platform="github"]::before {
    background: linear-gradient(90deg, #4078c0, #6e5494);
    opacity: 0;
}

.metrics-card[data-platform="reddit"]::before {
    background: linear-gradient(90deg, #FF4500, #FF8717);
    opacity: 0;
}

.metrics-card[data-platform="twitter"]::before {
    background: linear-gradient(90deg, #1DA1F2, #14171A);
    opacity: 0;
}

.metrics-card[data-platform="website"]::before {
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    opacity: 0;
}

.metrics-card:hover::before {
    opacity: 1;
}

.metric-item {
    transition: all 0.3s ease;
    transform: translateY(0);
}

.metric-item:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: var(--shadow-md);
}

.platform-icon {
    transition: all 0.3s ease;
}

.metrics-card:hover .platform-icon {
    transform: scale(1.2) rotate(12deg);
}

/* 数字计数动画 */
@keyframes countNumber {
    0% {
        transform: translateY(20px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.count-up, .count-up-big {
    opacity: 0;
    animation: countNumber 0.8s ease forwards;
}

.count-up-big {
    animation-duration: 1.2s;
}

/* 闪光效果 */
@keyframes shimmerEffect {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

.gradient-text {
    background: linear-gradient(90deg, 
        var(--color-primary), 
        var(--color-secondary), 
        var(--color-primary));
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: shimmerEffect 3s linear infinite;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .metrics-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .metric-item {
        padding: 0.75rem;
    }
}

/* 用于设置动画延迟的类 */
.metrics-card:nth-child(1) .count-up {
    animation-delay: 0.1s;
}

.metrics-card:nth-child(1) .count-up:nth-child(2) {
    animation-delay: 0.2s;
}

.metrics-card:nth-child(1) .count-up:nth-child(3) {
    animation-delay: 0.3s;
}

.metrics-card:nth-child(1) .count-up:nth-child(4) {
    animation-delay: 0.4s;
}

.metrics-card:nth-child(2) .count-up-big {
    animation-delay: 0.5s;
}

.metrics-card:nth-child(3) .count-up-big {
    animation-delay: 0.6s;
}

.metrics-card[data-platform="website"] .count-up-big {
    animation-delay: 0.7s;
}
/* Prevent theme toggle movement on hover */
#themeToggle:hover {
    transform: none !important; /* Override any potential inherited transforms */
}

/* Desktop-specific overrides (ensure mobile elements are hidden) */
@media (min-width: 769px) {
    .mobile-menu-button,
    .mobile-nav-menu {
        display: none !important; /* Force hide on desktop */
    }

    /* Ensure desktop nav and theme toggle are visible */
    .hidden.md\\:flex { /* Targeting the desktop nav container */
        display: flex !important;
    }
    #themeToggle {
        display: inline-block !important; /* Or inline-flex if needed, ensure it's not hidden */
    }
}

/* 重大里程碑横幅样式 */
.milestone-banner {
    background: linear-gradient(135deg, 
        rgba(var(--color-primary-rgb), 0.05) 0%, 
        rgba(var(--color-secondary-rgb), 0.05) 100%);
    border: 2px solid rgba(var(--color-primary-rgb), 0.2);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.milestone-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(var(--color-primary-rgb), 0.1), 
        transparent);
    animation: shimmer 2s infinite;
}

.milestone-banner:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(var(--color-primary-rgb), 0.15);
}

.milestone-content {
    display: flex;
    align-items: center;
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.milestone-icon {
    font-size: 3rem;
    color: #FFD700;
    animation: float 3s ease-in-out infinite;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.milestone-text {
    flex: 1;
}

.milestone-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.milestone-date {
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.milestone-label {
    background: linear-gradient(45deg, #FF6B6B, #FF8E53);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    animation: pulse 2s infinite;
}

.milestone-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.milestone-highlight {
    background: linear-gradient(45deg, #FF6B6B, #FF8E53, #FFD700);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 800;
    text-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
}

.milestone-description {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.5;
    margin: 0;
}

.milestone-tooltip {
    cursor: help;
    color: var(--color-primary);
    margin-left: 0.25rem;
}

.milestone-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
}

.stat-item {
    padding: 1rem;
    background: rgba(var(--color-primary-rgb), 0.05);
    border-radius: 12px;
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
    min-width: 120px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-weight: 500;
    margin-top: 0.25rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .milestone-banner {
        padding: 1.5rem;
    }
    
    .milestone-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .milestone-icon {
        font-size: 2.5rem;
    }
    
    .milestone-title {
        font-size: 1.5rem;
    }
    
    .milestone-stats {
        flex-direction: row;
        justify-content: center;
    }
    
    .stat-item {
        min-width: 100px;
        padding: 0.75rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .milestone-badge {
        flex-direction: column;
        align-items: center;
        gap: 0.25rem;
    }
    
    .milestone-title {
        font-size: 1.25rem;
    }
    
    .milestone-description {
        font-size: 0.9rem;
    }
}

/* ARR 里程碑卡片样式 */
.arr-milestone-card {
    background: linear-gradient(135deg, 
        rgba(var(--color-primary-rgb), 0.08) 0%, 
        rgba(var(--color-secondary-rgb), 0.08) 100%);
    border: 2px solid rgba(var(--color-primary-rgb), 0.15);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.arr-milestone-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6B6B, #FF8E53, #FFD700, #4ECDC4);
    animation: shimmer 3s infinite;
}

.arr-milestone-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(var(--color-primary-rgb), 0.2);
}

.arr-milestone-content {
    position: relative;
    z-index: 1;
}

.arr-milestone-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.arr-milestone-icon {
    font-size: 2.5rem;
    color: #FF6B6B;
    animation: float 3s ease-in-out infinite;
}

.arr-milestone-info {
    flex: 1;
    margin-left: 1rem;
}

.arr-milestone-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.arr-milestone-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 0;
}

.arr-milestone-badge {
    flex-shrink: 0;
}

.arr-record-badge {
    background: linear-gradient(45deg, #FF6B6B, #FF8E53);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 600;
    animation: pulse 2s infinite;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.arr-milestone-stats {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: center;
}

.arr-stat-primary {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 16px;
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

.dark .arr-stat-primary {
    background: rgba(0, 0, 0, 0.2);
}

.arr-stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(45deg, #FF6B6B, #FF8E53, #FFD700);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.arr-stat-label {
    font-size: 1rem;
    color: var(--color-text-light);
    font-weight: 500;
}

.arr-comparison {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.arr-comparison-item {
    display: grid;
    grid-template-columns: 80px 1fr 60px;
    align-items: center;
    gap: 1rem;
}

.arr-comparison-company {
    font-weight: 600;
    font-size: 0.9rem;
}

.arr-comparison-time {
    font-size: 0.85rem;
    color: var(--color-text-light);
    text-align: right;
}

.arr-comparison-bar {
    height: 8px;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.arr-cursor {
    background: linear-gradient(90deg, #FF6B6B, #FF8E53);
    width: 100%;
    animation: expandBar 2s ease-out;
}

.arr-slack {
    background: linear-gradient(90deg, #4A154B, #611F69);
    width: 67%;
    animation: expandBar 2s ease-out 0.5s both;
}

.arr-zoom {
    background: linear-gradient(90deg, #2D8CFF, #1E6FFF);
    width: 80%;
    animation: expandBar 2s ease-out 1s both;
}

@keyframes expandBar {
    from {
        width: 0;
    }
    to {
        width: var(--final-width, 100%);
    }
}

.arr-slack {
    --final-width: 67%;
}

.arr-zoom {
    --final-width: 80%;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .arr-milestone-card {
        padding: 1.5rem;
    }
    
    .arr-milestone-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .arr-milestone-info {
        margin-left: 0;
    }
    
    .arr-milestone-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .arr-stat-number {
        font-size: 2.5rem;
    }
    
    .arr-comparison {
        gap: 0.75rem;
    }
    
    .arr-comparison-item {
        grid-template-columns: 60px 1fr 50px;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .arr-milestone-title {
        font-size: 1.25rem;
    }
    
    .arr-stat-number {
        font-size: 2rem;
    }
    
    .arr-comparison-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 0.25rem;
    }
    
    .arr-comparison-bar {
        margin: 0.5rem 0;
    }
}