/* 通用样式文件 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 优化配色方案 */
    --primary-color: #06B6D4;
    --primary-dark: #0891B2;
    --primary-light: #22D3EE;
    --secondary-color: #10B981;
    --accent-color: #3B82F6;
    --highlight-color: #F59E0B;
    
    /* 背景色 - 增加层次感 */
    --bg-primary: #0F0F23;
    --bg-secondary: #1A1A2E;
    --bg-tertiary: #16213E;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-glass: rgba(255, 255, 255, 0.1);
    
    /* 文字颜色 - 提升可读性 */
    --text-primary: #FFFFFF;
    --text-secondary: #E2E8F0;
    --text-muted: #94A3B8;
    
    /* 边框和阴影 */
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-primary: 0 4px 20px rgba(124, 58, 237, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* 渐变 - 丰富的色彩组合 */
    --gradient-primary: linear-gradient(135deg, #06B6D4 0%, #10B981 50%, #3B82F6 100%);
    --gradient-secondary: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 50%, #06B6D4 100%);
    --gradient-accent: linear-gradient(135deg, #F59E0B 0%, #EF4444 50%, #EC4899 100%);
    --gradient-bg: linear-gradient(135deg, #0F0F23 0%, #1A1A2E 50%, #16213E 100%);
    --gradient-card: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
    
    /* 字体 */
    --font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* 断点变量 */
    --breakpoint-sm: 480px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1200px;
    --breakpoint-2xl: 1400px;
    
    /* 网格系统 */
    --grid-cols-1: 1fr;
    --grid-cols-2: repeat(2, 1fr);
    --grid-cols-3: repeat(3, 1fr);
    --grid-cols-4: repeat(4, 1fr);
    --grid-cols-auto-sm: repeat(auto-fit, minmax(240px, 1fr));
    --grid-cols-auto-md: repeat(auto-fit, minmax(300px, 1fr));
    --grid-cols-auto-lg: repeat(auto-fit, minmax(350px, 1fr));
    --grid-cols-auto-xl: repeat(auto-fit, minmax(400px, 1fr));
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* 过渡和动画 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --animation-duration-fast: 0.3s;
    --animation-duration-normal: 0.6s;
    --animation-duration-slow: 0.8s;
    --animation-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --animation-easing-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

body {
    font-family: var(--font-family);
    background: var(--gradient-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, #06B6D4 0%, #10B981 30%, #3B82F6 70%, #8B5CF6 100%);
    color: var(--text-primary);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(6, 182, 212, 0.4), 0 4px 16px rgba(16, 185, 129, 0.2);
    background: linear-gradient(135deg, #0891B2 0%, #059669 30%, #2563EB 70%, #7C3AED 100%);
}

.btn-primary.large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-outline {
    background: transparent;
    color: #06B6D4;
    border: 2px solid;
    border-image: linear-gradient(135deg, #06B6D4 0%, #10B981 50%, #3B82F6 100%) 1;
    padding: calc(var(--spacing-md) - 2px) calc(var(--spacing-xl) - 2px);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-outline:hover {
    background: linear-gradient(135deg, #06B6D4 0%, #10B981 50%, #3B82F6 100%);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(6, 182, 212, 0.3), 0 4px 16px rgba(16, 185, 129, 0.2);
    border-image: none;
    border-color: transparent;
}

.btn-outline.large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* 扩展按钮变体 */
.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--text-primary);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.4);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 按钮尺寸变体 */
.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-xl {
    padding: var(--spacing-xl) var(--spacing-3xl);
    font-size: var(--font-size-xl);
}

/* 按钮状态 */
.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-loading {
    position: relative;
    color: transparent;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 35, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-normal);
    transform: translateY(0);
}

.navbar.scrolled {
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(30px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(124, 58, 237, 0.3);
}

.navbar.hidden {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo .logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, #7C3AED 0%, #8B5CF6 30%, #06B6D4 70%, #10B981 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.nav-actions {
    display: flex;
    gap: var(--spacing-md);
}

.nav-actions .btn-primary {
    padding: 4px var(--spacing-md);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-lg);
    font-weight: 600;
    line-height: 1.1;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #06B6D4 0%, #10B981 30%, #3B82F6 70%, #8B5CF6 100%);
}

.nav-actions .btn-outline {
    padding: 4px var(--spacing-md);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-lg);
    font-weight: 600;
    line-height: 1.1;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid;
    border-image: linear-gradient(135deg, #06B6D4 0%, #10B981 50%, #3B82F6 100%) 1;
    background: transparent;
}

.nav-actions .btn-consult,
.nav-actions .btn-contact {
    padding: 8px 20px;
    height: 35px;
    border-radius: 12px;
    text-decoration: none;
    font-size: var(--font-size-xs);
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 100px;
    cursor: pointer;
    position: relative;
}

.nav-actions .btn-consult {
    background: linear-gradient(135deg, #06B6D4 0%, #10B981 30%, #3B82F6 70%, #8B5CF6 100%);
    color: white;
    border: none;
    margin-right: 12px;
}

.nav-actions .btn-consult:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.4);
    background: linear-gradient(135deg, #0891B2 0%, #059669 30%, #2563EB 70%, #7C3AED 100%);
}

.nav-actions .btn-consult:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(168, 85, 247, 0.3);
    background: linear-gradient(135deg, #7C2D92 0%, #1E3A8A 100%);
}

.nav-actions .btn-contact {
    background: transparent;
    color: #06B6D4;
    border: 2px solid;
    border-image: linear-gradient(135deg, #06B6D4 0%, #10B981 50%, #3B82F6 100%) 1;
}

.nav-actions .btn-contact:hover {
    background: linear-gradient(135deg, #06B6D4 0%, #10B981 50%, #3B82F6 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.3);
    border-image: none;
    border-color: transparent;
}

.nav-actions .btn-contact:active {
    transform: translateY(0);
    background: #9333EA;
    border-color: #9333EA;
    box-shadow: 0 4px 15px rgba(168, 85, 247, 0.2);
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, #06B6D4 0%, #10B981 30%, #3B82F6 70%, #8B5CF6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 卡片样式 */
.card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
    border-color: var(--primary-color);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.card:hover::before {
    transform: scaleX(1);
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.footer-section h3 {
    font-size: var(--font-size-xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.footer-section h4 {
    font-size: var(--font-size-lg);
}

.footer-section p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-normal);
    font-size: var(--font-size-base);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

.footer-copyright {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.footer-copyright p {
    margin: 0;
    font-size: var(--font-size-base);
}

.footer-copyright a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-normal);
    font-size: var(--font-size-base);
}

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

@media (max-width: 768px) {
    .footer-copyright {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* 移动端导航菜单 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: all var(--transition-normal);
    border-radius: var(--radius-sm);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* 增强的阴影效果 */
.shadow-glow {
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.5);
}

.shadow-card {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(124, 58, 237, 0.1);
}

/* 加载状态 */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 15, 35, 0.95);
        backdrop-filter: blur(20px);
        border-top: 1px solid var(--border-color);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 0;
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
        transition: all var(--transition-normal);
    }
    
    .nav-link:hover {
        background: rgba(124, 58, 237, 0.1);
    }
    
    .nav-actions {
        display: none;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-base);
    }
    
    .btn-primary,
    .btn-outline {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section-title {
        font-size: var(--font-size-lg);
    }
    
    .section-subtitle {
        font-size: var(--font-size-sm);
    }
    
    .btn-primary,
    .btn-outline {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
        width: 100%;
        text-align: center;
    }
    
    .nav-container {
        height: 60px;
    }
    
    .nav-logo .logo-text {
        font-size: var(--font-size-lg);
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.fade-in-up {
    animation: fadeInUp var(--animation-duration-normal) var(--animation-easing) forwards;
}

.float {
    animation: float 3s var(--animation-easing) infinite;
}

.pulse {
    animation: pulse 2s var(--animation-easing) infinite;
}

/* 更多动画工具类 */
.animate-bounce {
    animation: bounce var(--animation-duration-slow) var(--animation-easing-bounce) infinite;
}

.animate-fade-in {
    animation: fadeIn var(--animation-duration-normal) var(--animation-easing) forwards;
}

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

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -30px, 0);
    }
    70% {
        transform: translate3d(0, -15px, 0);
    }
    90% {
        transform: translate3d(0, -4px, 0);
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(26, 26, 46, 0.3);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #7c3aed, #4f46e5);
}

/* 网格工具类 */
.grid-1 { grid-template-columns: var(--grid-cols-1); }
.grid-2 { grid-template-columns: var(--grid-cols-2); }
.grid-3 { grid-template-columns: var(--grid-cols-3); }
.grid-4 { grid-template-columns: var(--grid-cols-4); }
.grid-auto-sm { grid-template-columns: var(--grid-cols-auto-sm); }
.grid-auto-md { grid-template-columns: var(--grid-cols-auto-md); }
.grid-auto-lg { grid-template-columns: var(--grid-cols-auto-lg); }
.grid-auto-xl { grid-template-columns: var(--grid-cols-auto-xl); }

/* 响应式按钮工具类 */
.btn-responsive {
    width: 100%;
    max-width: 280px;
    justify-content: center;
}

@media (max-width: 768px) {
    .btn-responsive {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}